55 of 88:
Debbie Gibson, a 1980s teen pop queen known for hits such as 'Foolish Beat', turned 40 on August 31 and sang in 'Cirque Dreams Jungle Fantasy', a circus show at a Connecticut hotel and casino in summer 2010. Debbie Gibson, right, Tweeted this photo on Aug. 29, 2010, saying: 'W/Anna in Cirque Dreams!'.
(Photo courtesy of twitter.com/DeborahGibson)