Britney Spears, other celebs Tweet about the Rapture

Slideshow posted in Entertainment News | Saturday, May 21, 2011

9 of 23: "If the world does end today, I've never been this healthy and this happy in my entire life... #notpanicked, #feelingblessed!!" Demi Lovato wrote on Twitter. (Pictured: Demi Lovato appears in a promotional still for her '20/20' interview with Robin Roberts in April 2011.) (ABC Photo)