Insider Challenge: Who's That Star?

Think you're good at celeb spotting? Take today's Insider Challenge!

Who's that star kissing an autograph for a fan in London? Leave your best guess in the comments section below, then tune in to tomorrow's "Insider" for the answer. If you guessed right, your name may be the one called out on-air!

If you need another angle, check out the photographic evidence.

If you're still scratching your head, here's a hint: She made her big debut in 2007, but prior to that she produced hit for The Pussycat Dolls and many others.

Published 1/16/09 by

Comments (147)

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Of course...Lady GaGa, you go girl. Dina Lousiana

Anonymous 1/22/09 Reply
lady gaga

EliznaP 1/20/09 Reply
it's either lady gaga or christina agularia if that's how u spell her name

Anonymous 1/19/09 Reply
its ladyGaGa

ontario canada

Anonymous 1/19/09 Reply
HI JOE,JUST WANTED TO LET YOU KNOW THAT I ADMIRE YOUR STYLE AND I WOULD LIKE TO KNOW IF WE CAN BE FRIENDS?

Anonymous 1/19/09 Reply
Lady Gaga

Anonymous 1/19/09 Reply
Lady Gaga!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Anonymous 1/19/09 Reply
This is too easy....Lady gaga. Who else would wear their hair like that? Ewgh!

Anonymous 1/19/09 Reply
Ashly Simpson , i think?

zaidan55 1/19/09 Reply
i most definitly think that is lady gaga because doesn't she create her own styles and i'm sure i've seen her wear that bow in her hair before and every body says that she writes songs for famous singers like christina aguilera so it lady gaga.

Anonymous 1/19/09 Reply
Lady Gaga

MmmHmm 1/18/09 Reply
LADY GAGA...WHO ELSE! She dresses weird but her songs are awesome

Anonymous 1/18/09 Reply
that is lady gaga that was easy

Anonymous 1/18/09 Reply
That looks like Lady Gaga!

Anonymous 1/18/09 Reply
I think that this is Lady Gaga

Anonymous 1/18/09 Reply