Who Made ‘Hollywood’s 25 Hottest Under 25′ List?

“Fame and success can be fleeting in Hollywood—just ask the Coreys,” quips the site Moviefone in its intro to the second annual list of 25 Under 25: Hollywood’s Hottest Young Stars.

So who made the Class of 2008?

Among the youthful elite are a GQ cover girl (Megan Fox, who landed the top spot), a big-screen musical star (Zac Efron), a Gossip gal (Blake Lively) and the lead in this Friday’s release Nick and Norah’s Infinite Playlist (Michael Cera).

Also making the cut is 18-year-old Harry Potter starlet Emma Watson, who the site says “has blossomed in front of our eyes, from cute kid to—dare we say it—hot young adult.”

Take that dare, Moviefone…hot certainly seems to be the appropriate word for her these days.