Celeb Spotter: Nick Jonas surprises fans in London & more

Celeb Spotter
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Celeb Spotter: Nick Jonas surprises fans in London & more
Nick Jonas surprised fans at Westfield London with an impromptu performance on April 10. (Photo by Ben A. Pruchnie/Getty Images)
Actresses Hilary Swank and Edie Falco were honored at the ASPCA's 18th Annual Bergh Ball on April 9 in New York City. (Photo by Dimitrios Kambouris/Getty Images)
"High School Musical"-turned-Broadway star Vanessa Hudgens, 26, snuggled up with her "Gigi" costar Max Clayton during the Broadway Opening Night Gypsy Robe Ceremony on April 8. (Photo by Walter McBride/WireImage)
Paris Hilton, 34, kept it casual in sweats while walking her chihuahua on April 8. We gotta say ... her hair still looks pretty flawless! (Photo by Bauer-Griffin/GC Images)
Gwen Stefani, 45, has to be the coolest mom ever. The blonde bombshell and No Doubt frontwoman looked super edgy while heading to her acupuncturist on April 8. (Photo by MPI99/Bauer-Griffin/GC Images)
Amal Clooney, 37, was spotted in the West Village on April 7 in a chic outfit that reportedly cost $4,075. (Photo by Alo Ceballos/GC Images)
"Entourage" movie co-stars Emily Ratajkowski and Kevin Dillon snuggled up at a Budweiser event on April 7. (Photo by John Sciulli/Getty Images for Budweiser)
Jennifer Hudson, 33, rocked a black jumpsuit and a Chanel denim bomber jacket at LAX on April 6. (Photo by GVK/Bauer-Griffin/GC Images)
Reese Witherspoon got us in the mood for spring in a n adorable black and white floral skirt and denim jacket while out and about in Beverly Hills on April 6. (Photo by Bauer-Griffin/GC Images)
Brooke Shields, 49, looked casual chic in leather trousers and sneakers while walking her dog in Soho on April 6. (Photo by Raymoan Hall/GC Images)
Kendall and Kylie Jenner rocked some trendy -- and arguably inappropriate -- outfits to church on Easter. (Photo by Bauer-Griffin/GC Images)

London fans went wild when Nick Jonas, 22, made a surprise appearance at Westfield London Shopping Centre on Friday.
The "Jealous" singer rocked out after calling on fans via Twitter just a few moments before.
Check out more celeb sightings in the gallery above.

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