Taylor Swift stuns in surprise Billboard Music Awards appearance

Surprise, it's Taylor!

Rumors that Taylor Swift was making a surprise appearance at Sunday night's 2018 Billboard Music Awards were confirmed when the "Delicate" singer stepped out on the red carpet 15 minutes before the show began.

SEE ALSO: Billboard Music Awards 2018: All of the sexiest red carpet looks

Swift, who was hitting her first red carpet in over two years, looked absolutely stunning in her intricate lilac gown with a thigh-high slit, glistening embellishments and matching heels. The star, who was seated between pals Camila Cabello and Shawn Mendes in the front row, finished off her look with a unique updo.

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Taylor Swift at the 2018 Billboard Music Awards
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Taylor Swift at the 2018 Billboard Music Awards
LAS VEGAS, NV - MAY 20: Recording artist Taylor Swift attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Jeff Kravitz/FilmMagic)
LAS VEGAS, NV - MAY 20: Recording artist Taylor Swift attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by John Shearer/Getty Images for dcp)
LAS VEGAS, NV - MAY 20: Recording artist Taylor Swift attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by John Shearer/Getty Images for dcp)
LAS VEGAS, NV - MAY 20: Recording artist Taylor Swift attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)
LAS VEGAS, NV - MAY 20: Recording artist Taylor Swift attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)
LAS VEGAS, NV - MAY 20: Recording artist Taylor Swift attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)
LAS VEGAS, NV - MAY 20: Recording artist Taylor Swift attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)
LAS VEGAS, NV - MAY 20: Recording artist Taylor Swift attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Jeff Kravitz/FilmMagic)
LAS VEGAS, NV - MAY 20: Recording artist Taylor Swift attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by John Shearer/Getty Images for dcp)
LAS VEGAS, NV - MAY 20: Recording artist Taylor Swift attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Jeff Kravitz/FilmMagic)
LAS VEGAS, NV - MAY 20: Taylor Swift attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Jeff Kravitz/FilmMagic)
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Swift narrowly avoided a wardrobe malfunction while walking the carpet. Her dress' thigh-high slit left little to the imagination, but the singer -- who is a total red carpet pro over a decade into her career -- made sure not to flash too much to the paparazzi.

The "Look What You Made Me Do" singer recently kicked off her Reputation Stadium Tour and just came off a two-night stint at the Rose Bowl in Pasadena, California, where she brought out Mendes, Troye Sivan and longtime pal Selena Gomez to perform with her. Mendes and Charli XCX are her opening acts.

See more photos from the 2018 Billboard Awards red carpet:

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Billboard Music Awards 2018: Red carpet arrivals
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Billboard Music Awards 2018: Red carpet arrivals
LAS VEGAS, NV - MAY 20: Hailey Baldwin attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by John Shearer/Getty Images for dcp)
LAS VEGAS, NV - MAY 20: Recording artist Demi Lovato attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by John Shearer/Getty Images for dcp)
LAS VEGAS, NV - MAY 20: Host Kelly Clarkson attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Matt Winkelmeyer/Getty Images for dcp)
LAS VEGAS, NV - MAY 20: Recording artist Jennifer Lopez attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Jeff Kravitz/FilmMagic)
LAS VEGAS, NV - MAY 20: Recording artist Taylor Swift attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Jeff Kravitz/FilmMagic)
LAS VEGAS, NV - MAY 20: Recording artist Janet Jackson attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Jeff Kravitz/FilmMagic)
LAS VEGAS, NV - MAY 20: Recording artist Shawn Mendes attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by John Shearer/Getty Images for dcp)
LAS VEGAS, NV - MAY 20: Actor Jenna Dewan attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)
LAS VEGAS, NV - MAY 20: Recording artist-actor Nick Jonas attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by John Shearer/Getty Images for dcp)
LAS VEGAS, NV - MAY 20: Recording artist Christina Aguilera attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)
LAS VEGAS, NV - MAY 20: Recording artist Maren Morris attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Matt Winkelmeyer/Getty Images for dcp)
LAS VEGAS, NV - MAY 20: Recording artist Halsey attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Steve Granitz/WireImage)
LAS VEGAS, NV - MAY 20: Recording artist Dua Lipa attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)
LAS VEGAS, NV - MAY 20: Recording artist Camila Cabello attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)
LAS VEGAS, NV - MAY 20: Recording artist Camila Cabello attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)
LAS VEGAS, NV - MAY 20: Actor Mila Kunis attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Jon Kopaloff/FilmMagic)
LAS VEGAS, NV - MAY 20: Actor Evan Ross (L) and recording artist Ashlee Simpson attend the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Jon Kopaloff/FilmMagic)
LAS VEGAS, NV - MAY 20: Recording artist Kygo attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Matt Winkelmeyer/Getty Images for dcp)
LAS VEGAS, NV - MAY 20: Recording artist John Legend attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Kevin Mazur/WireImage)
LAS VEGAS, NV - MAY 20: Recording artist Kesha attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)
LAS VEGAS, NV - MAY 20: Recording artist Ciara attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by John Shearer/Getty Images for dcp)
LAS VEGAS, NV - MAY 20: Recording artist Ciara attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by John Shearer/Getty Images for dcp)
LAS VEGAS, NV - MAY 20: Recording artist Normani attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by John Shearer/Getty Images for dcp)
LAS VEGAS, NV - MAY 20: DJ Khaled attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by John Shearer/Getty Images for dcp)
LAS VEGAS, NV - MAY 20: TV personality Tyra Banks attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)
LAS VEGAS, NV - MAY 20: Actor Alison Brie attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)
LAS VEGAS, NV - MAY 20: Recording artist Zedd attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Jon Kopaloff/FilmMagic)
LAS VEGAS, NV - MAY 20: TV personality Padma Lakshmi attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)
LAS VEGAS, NV - MAY 20: Actors Chrishell Hartley (L) and Justin Hartley attend the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)
LAS VEGAS, NV - MAY 20: TV personality Andy Cohen attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by John Shearer/Getty Images for dcp)
LAS VEGAS, NV - MAY 20: (L-R) Recording artists Rhona Bennett, Terry Ellis, and Cindy Herron of musical group En Vogue attend the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Kevin Mazur/WireImage)
LAS VEGAS, NV - MAY 20: Recording artist Julia Michaels attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)
LAS VEGAS, NV - MAY 20: Recording artist Julia Michaels attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by John Shearer/Getty Images for dcp)
LAS VEGAS, NV - MAY 20: (L-R) Recording artists Kyle Trewartha of Grey, Zedd, Maren Morris, and Michael Trewartha of Grey attend the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by John Shearer/Getty Images for dcp)
LAS VEGAS, NV - MAY 20: Actor Chrissy Metz attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)
LAS VEGAS, NV - MAY 20: Actor Darren Criss attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by John Shearer/Getty Images for dcp)
LAS VEGAS, NV - MAY 20: Recording artist Khalid attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by John Shearer/Getty Images for dcp)
LAS VEGAS, NV - MAY 20: Influencer Alyson Stoner attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Jeff Kravitz/FilmMagic)
LAS VEGAS, NV - MAY 20: Prince Jackson attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)
LAS VEGAS, NV - MAY 20: Recording artist Ne-Yo attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)
LAS VEGAS, NV - MAY 20: Dancer-TV personality Derek Hough attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Jon Kopaloff/FilmMagic)
LAS VEGAS, NV - MAY 20: Recording artist Bebe Rexha attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by John Shearer/Getty Images for dcp)
LAS VEGAS, NV - MAY 20: Influencer Chantel Jeffries attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by John Shearer/Getty Images for dcp)
LAS VEGAS, NV - MAY 20: Influencer Chantel Jeffries attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by John Shearer/Getty Images for dcp)
LAS VEGAS, NV - MAY 20: Erika Jayne attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Jon Kopaloff/FilmMagic)
LAS VEGAS, NV - MAY 20: Diplo attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Steve Granitz/WireImage)
LAS VEGAS, NV - MAY 20: Recording artist Mason Ramsey attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Kevin Mazur/WireImage)
LAS VEGAS, NV - MAY 20: Recording artist Luis Fonsi attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)
LAS VEGAS, NV - MAY 20: Recording artist Jesse McCartney attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Steve Granitz/WireImage)
LAS VEGAS, NV - MAY 20: Recording artist Kiiara attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by John Shearer/Getty Images for dcp)
LAS VEGAS, NV - MAY 20: Recording artist Grace VanderWaal attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by John Shearer/Getty Images for dcp)
LAS VEGAS, NV - MAY 20: Music group BTS attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by John Shearer/Getty Images for dcp)
LAS VEGAS, NV - MAY 20: Recording artist Justine Skye attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Steve Granitz/WireImage)
LAS VEGAS, NV - MAY 20: Internet personality Gigi Gorgeous attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by John Shearer/Getty Images for dcp)
LAS VEGAS, NV - MAY 20: Recording artist Bhad Bhabie attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)
LAS VEGAS, NV - MAY 20: TV personality Frankie J. Grande attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Steve Granitz/WireImage)
Recording artist Bonnie McKee attends the 2018 Billboard Music Awards 2018 at the MGM Grand Resort International on May 20, 2018 in Las Vegas, Nevada. (Photo by LISA O'CONNOR / AFP) (Photo credit should read LISA O'CONNOR/AFP/Getty Images)
LAS VEGAS, NV - MAY 20: Recording artist Lil Pump attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by John Shearer/Getty Images for dcp)
LAS VEGAS, NV - MAY 20: DJ Pauly D (Center) and guests attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Jon Kopaloff/FilmMagic)
LAS VEGAS, NV - MAY 20: Actor Mila Kunis attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)
LAS VEGAS, NV - MAY 20: Olympic snowboarder Chloe Kim attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images)
LAS VEGAS, NV - MAY 20: Cheryl James (L) and Sandra Denton of musical group Salt-N-Pepa attend the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Matt Winkelmeyer/Getty Images for dcp)
LAS VEGAS, NV - MAY 20: Recording artist Quavo of Migos attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by John Shearer/Getty Images for dcp)
LAS VEGAS, NV - MAY 20: Recording artist Z LaLa attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Steve Granitz/WireImage)
LAS VEGAS, NV - MAY 20: Recording artist French Montana attends the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. (Photo by Jon Kopaloff/FilmMagic)
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