Tina Fey's Bieber fever!
Showbiz Tonight's A.J. Hammer spoke with the "Saturday Night Live" veteran just before pop star Justin Bieber hosted 'SNL' for the very first time. Fey had previously worked with the Biebs at 'SNL' when he was a musical guest in 2010 and she told A.J. she understands what the young girls feel for Bieber. Watch!