Elton John's Oscars viewing party: Red carpet arrivals

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Elton John's AIDS Foundation hosted its annual Oscars viewing party during the 89th Annual Academy Awards on Sunday night, and it was a celeb hot spot, as per usual.

Caitlyn Jenner was one of the most notable attendees, though we weren't in love with her look. The reality TV star donned a matronly gown with sheer, ruffly short sleeves -- it definitely wasn't the gorgeous star's best look.

SEE ALSO: Vanity Fair Oscars Party 2017: Red carpet arrivals

Heidi Klum, on the other hand, was ravishing in a sexy red satin gown with a seriously plunging neckline. She finished off the look with some major diamonds that called further attention to her cleavage.

She posed with fellow model Adriana Lima, who looked stunning in a figure-hugging white dress with midriff cutouts.

Laverne Cox, Tracee Ellis Ross, Vanessa Hudgens and Freida Pinto were some of the other big stars that donned notable looks.

Check out all of the arrivals below:

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Elton John AIDS Foundation's Oscars viewing party: Red carpet arrivals
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Elton John AIDS Foundation's Oscars viewing party: Red carpet arrivals
WEST HOLLYWOOD, CA - FEBRUARY 26: TV personality Caitlyn Jenner attends the 25th Annual Elton John AIDS Foundation's Oscar Viewing Party at The City of West Hollywood Park on February 26, 2017 in West Hollywood, California. (Photo by Frederick M. Brown/Getty Images)

Chairman David Furnish (L) and Host Elton John (R) attends the 25th Annual Elton John AIDS Foundation's Academy Awards Viewing Party at The City of West Hollywood Park on February 26, 2017 in West Hollywood, California.

(Photo by Frederick M. Brown/Getty Images)

WEST HOLLYWOOD, CA - FEBRUARY 26: NFL player Russell Wilson (L) and recording artist Ciara attend the 25th Annual Elton John AIDS Foundation's Academy Awards Viewing Party at The City of West Hollywood Park on February 26, 2017 in West Hollywood, California. (Photo by Dimitrios Kambouris/Getty Images for EJAF)
Heidi Klum attends the 2017 Elton John AIDS Foundation Academy Awards Viewing Party in West Hollywood, California, on February 26, 2017. / AFP / TIBRINA HOBSON (Photo credit should read TIBRINA HOBSON/AFP/Getty Images)
WEST HOLLYWOOD, CA - FEBRUARY 26: Olympic Gymnast Gabby Douglas attends the 25th Annual Elton John AIDS Foundation's Academy Awards Viewing Party at The City of West Hollywood Park on February 26, 2017 in West Hollywood, California. (Photo by Jamie McCarthy/Getty Images for EJAF)

Caitlyn Jenner and model Andreja Pejic attend Bulgari at the 25th Annual Elton John AIDS Foundation's Academy Awards Viewing Party at on February 26, 2017 in Los Angeles, California.

(Photo by Venturelli/Getty Images for BVLGARI)

Lea Michele, with a Naeem Khan clutch, and Brad Goreski attend Bulgari at the 25th Annual Elton John AIDS Foundation's Academy Awards Viewing Party at on February 26, 2017 in Los Angeles, California. (Photo by Venturelli/Getty Images for BVLGARI)
WEST HOLLYWOOD, CA - FEBRUARY 26: Laverne Cox arrives at the 25th Annual Elton John AIDS Foundation's Oscar viewing party held at The City of West Hollywood Park on February 26, 2017 in West Hollywood, California. (Photo by Michael Tran/FilmMagic)

Actor Tim Allen (L) and Jane Hajduk attend the 25th Annual Elton John AIDS Foundation's Academy Awards Viewing Party at The City of West Hollywood Park on February 26, 2017 in West Hollywood, California.

(Photo by Dimitrios Kambouris/Getty Images for EJAF)

WEST HOLLYWOOD, CA - FEBRUARY 26: Actor Tracee Ellis Ross attends the 25th Annual Elton John AIDS Foundation's Academy Awards Viewing Party at The City of West Hollywood Park on February 26, 2017 in West Hollywood, California. (Photo by Dimitrios Kambouris/Getty Images for EJAF)
WEST HOLLYWOOD, CA - FEBRUARY 26: Actor Angela Sarafyan attends the 25th Annual Elton John AIDS Foundation's Academy Awards Viewing Party at The City of West Hollywood Park on February 26, 2017 in West Hollywood, California. (Photo by Dimitrios Kambouris/Getty Images for EJAF)
WEST HOLLYWOOD, CA - FEBRUARY 26: Actor Freida Pinto attends the 25th Annual Elton John AIDS Foundation's Academy Awards Viewing Party at The City of West Hollywood Park on February 26, 2017 in West Hollywood, California. (Photo by Dimitrios Kambouris/Getty Images for EJAF)
LOS ANGELES, CA - FEBRUARY 26: Actor Vanessa Hudgens attends Bulgari at the 25th Annual Elton John AIDS Foundation's Academy Awards Viewing Party at on February 26, 2017 in Los Angeles, California. (Photo by Venturelli/Getty Images for BVLGARI)

Entrepreneur Robert Herjavec attends the 25th Annual Elton John AIDS Foundation's Academy Awards Viewing Party at The City of West Hollywood Park on February 26, 2017 in West Hollywood, California.

(Photo by Dimitrios Kambouris/Getty Images for EJAF)

LOS ANGELES, CA - FEBRUARY 26: Model Adriana Lima attends Bulgari at the 25th Annual Elton John AIDS Foundation's Academy Awards Viewing Party at on February 26, 2017 in Los Angeles, California. (Photo by Venturelli/Getty Images for BVLGARI)
WEST HOLLYWOOD, CA - FEBRUARY 26: Actor Eric McCormack (L) and Janet Holden attends the 25th Annual Elton John AIDS Foundation's Oscar Viewing Party at The City of West Hollywood Park on February 26, 2017 in West Hollywood, California. (Photo by Jamie McCarthy/Getty Images for EJAF)

Princess Lilly Zu Sayn Wittgenstein Berleburg attends the 25th Annual Elton John AIDS Foundation's Academy Awards Viewing Party at The City of West Hollywood Park on February 26, 2017 in West Hollywood, California.

(Photo by Frederick M. Brown/Getty Images)

Designer Pamella Roland attends the 25th Annual Elton John AIDS Foundation's Academy Awards Viewing Party at The City of West Hollywood Park on February 26, 2017 in West Hollywood, California.

(Photo by Dimitrios Kambouris/Getty Images for EJAF)

WEST HOLLYWOOD, CA - FEBRUARY 26: Diana Jenkins attends the 25th Annual Elton John AIDS Foundation's Academy Awards Viewing Party at The City of West Hollywood Park on February 26, 2017 in West Hollywood, California. (Photo by Michael Kovac/Getty Images for EJAF)
WEST HOLLYWOOD, CA - FEBRUARY 26: Screenwriter Terry George (R) and Rina Kara attends the 25th Annual Elton John AIDS Foundation's Academy Awards Viewing Party at The City of West Hollywood Park on February 26, 2017 in West Hollywood, California. (Photo by Frederick M. Brown/Getty Images)
WEST HOLLYWOOD, CA - FEBRUARY 26: Models Adriana Lima (L) and Heidi Klum attend the 25th Annual Elton John AIDS Foundation's Academy Awards Viewing Party at The City of West Hollywood Park on February 26, 2017 in West Hollywood, California. (Photo by Dimitrios Kambouris/Getty Images for EJAF)
WEST HOLLYWOOD, CA - FEBRUARY 26: Internet Personality Carli Bybel (R) and Brett Cap attend the 25th Annual Elton John AIDS Foundation's Academy Awards Viewing Party at The City of West Hollywood Park on February 26, 2017 in West Hollywood, California. (Photo by Frederick M. Brown/Getty Images)
LOS ANGELES, CA - FEBRUARY 26: Model Lydia Hearst attends Bulgari at the 25th Annual Elton John AIDS Foundation's Academy Awards Viewing Party at on February 26, 2017 in Los Angeles, California. (Photo by Venturelli/Getty Images for BVLGARI)
WEST HOLLYWOOD, CA - FEBRUARY 26: Actor Ryan Kwanten (R) and Lloyd Kwanten attend the 25th Annual Elton John AIDS Foundation's Academy Awards Viewing Party at The City of West Hollywood Park on February 26, 2017 in West Hollywood, California. (Photo by Dimitrios Kambouris/Getty Images for EJAF)
WEST HOLLYWOOD, CA - FEBRUARY 26: Model Jasmine Tookes attends the 25th Annual Elton John AIDS Foundation's Academy Awards Viewing Party at The City of West Hollywood Park on February 26, 2017 in West Hollywood, California. (Photo by Dimitrios Kambouris/Getty Images for EJAF)
LOS ANGELES, CA - FEBRUARY 26: Model Alessandra Ambrosio attends Bulgari at the 25th Annual Elton John AIDS Foundation's Academy Awards Viewing Party at on February 26, 2017 in Los Angeles, California. (Photo by Venturelli/Getty Images for BVLGARI)
WEST HOLLYWOOD, CA - FEBRUARY 26: TV Personality Gordon Ramsay (R) and Holly Anna Ramsay (L) attends the 25th Annual Elton John AIDS Foundation's Oscar Viewing Party at The City of West Hollywood Park on February 26, 2017 in West Hollywood, California. (Photo by Jamie McCarthy/Getty Images for EJAF)
LOS ANGELES, CA - FEBRUARY 26: Model Petra Nemcova attends Bulgari at the 25th Annual Elton John AIDS Foundation's Academy Awards Viewing Party at on February 26, 2017 in Los Angeles, California. (Photo by Venturelli/Getty Images for BVLGARI)
WEST HOLLYWOOD, CA - FEBRUARY 26: Actor Andrew Rannells attends the 25th Annual Elton John AIDS Foundation's Oscar Viewing Party at The City of West Hollywood Park on February 26, 2017 in West Hollywood, California. (Photo by Jamie McCarthy/Getty Images for EJAF)
WEST HOLLYWOOD, CA - FEBRUARY 26: Internet Personality Jessica Clements attends the 25th Annual Elton John AIDS Foundation's Academy Awards Viewing Party at The City of West Hollywood Park on February 26, 2017 in West Hollywood, California. (Photo by Frederick M. Brown/Getty Images)
WEST HOLLYWOOD, CA - FEBRUARY 26: Recording artists Leona Lewis (L) and JC Chasez attends the 25th Annual Elton John AIDS Foundation's Academy Awards Viewing Party at The City of West Hollywood Park on February 26, 2017 in West Hollywood, California. (Photo by Dimitrios Kambouris/Getty Images for EJAF)
LOS ANGELES, CA - FEBRUARY 26: Model Petra Nemcova attends Bulgari at the 25th Annual Elton John AIDS Foundation's Academy Awards Viewing Party at on February 26, 2017 in Los Angeles, California. (Photo by Venturelli/Getty Images for BVLGARI)
WEST HOLLYWOOD, CA - FEBRUARY 26: Actor Katharine McPhee attends the 25th Annual Elton John AIDS Foundation's Oscar Viewing Party at The City of West Hollywood Park on February 26, 2017 in West Hollywood, California. (Photo by Frederick M. Brown/Getty Images)
WEST HOLLYWOOD, CA - FEBRUARY 26: Ruby Rose arrives at the 25th Annual Elton John AIDS Foundation's Oscar viewing party held at The City of West Hollywood Park on February 26, 2017 in West Hollywood, California. (Photo by Michael Tran/FilmMagic)
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