George Stephanopoulos, who turned 49 today, got a birthday surprise on 'Good Morning America' (weekdays, 7AM ET on ABC) when his wife, actress Ali Wentworth, appeared on camera dressed as Diane Sawyer, then performed a modest, partial strip tease and gyrated on a desk.

"They made me keep my clothes on," Wentworth said.

Watch the video after the jump.George Stephanopoulos, who turned 49 today, got a birthday surprise on 'Good Morning America' (weekdays, 7AM ET on ABC) when his wife, actress Ali Wentworth, appeared on camera dressed as Diane Sawyer, then performed a modest, partial strip tease and gyrated on a desk.

"They made me keep my clothes on," Wentworth said.