TEST YOURSELF How many of these stars can you identify from the clues you're given?

Got a clue? Take our quiz on hot young stars.
By TIM ENGLE
KNIGHT RIDDER NEWSPAPERS
Can you recognize the top hot young stars?
Try our quiz to prove your celeb savvy: Match the famous name with the appropriate factoid. Just to make it harder, we've given you 10 names but 11 answers.
All 10 are featured in Teen People's "25 Hottest Stars Under 25" issue.
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THE NAMES
1Ms Dynamite
2Diego Luna
3Beyonc & eacute; Knowles
4Ashton Kutcher
5Tyrese
6Avril Lavigne
7Gregory Smith
8Nick Cannon
9Christina Aguilera
10John Mayer
THE CLUES
A Co-star on "That '70s Show"; recently hosted "SNL" in tighty-whiteys.
BSome punk purists denounced this sk8r grrrl's look as poser-ish.
CTouring this summer with the famous ex (J.T.) of rival Britney.
DTV star (his own Nick show), movie star ("Drumline"), stand-up comedian.
ECD debut "A Little Deeper" went platinum in England.
FDated Jennifer Love Hewitt; hit song "Your Body Is a Wonderland."
GOn a break from Destiny's Child; solo album "Dangerously in Love" debuts soon.
HBad boy on TV's "Once and Again & quot;; co-starred with Mandy Moore in big-screen "A Walk to Remember."
ICatch up with this actor/ singer/former MTV VJ in "2 Fast 2 Furious" this summer.
JStarred in "Y Tu Mama Tambien"; will star in "Havana Nights: Dirty Dancing 2" next year.
KTreat Williams' sensitive son on TV's "Everwood"; a native of Toronto.