Leighton Meester's Suprise Appearance At 'Weezer' Show

Leighton Meester at the 2009 Library Lions Benefit in New York on November 2, 2009 1

Leighton Meester at the 2009 Library Lions Benefit in New York on November 2, 2009 2

Leighton Meester at the 2009 Library Lions Benefit in New York on November 2, 2009 3

Leighton Meester at the 2009 Library Lions Benefit in New York on November 2, 2009 4

Leighton Meester at the 2009 Library Lions Benefit in New York on November 2, 2009 5

Leighton Meester at the 2009 Library Lions Benefit in New York on November 2, 2009 6

Leighton Meester at the 2009 Library Lions Benefit in New York on November 2, 2009 7

Leighton Meester at the 2009 Library Lions Benefit in New York on November 2, 2009 8

Leighton Meester at the 2009 Library Lions Benefit in New York on November 2, 2009 9