Lady Gaga, Cher, and more react to end of Britney Spears' conservatorship: 'You're a superstar'
'I couldn't be more happy for you today,' the "Born This Way" singer wrote on Twitter.
Celebrities are calling for gun reform in wake of Boulder shootings
Michelle Obama, Julianne Moore, and Jamie Lee Curtis are among stars asking for change in gun control laws after yet another avoidable mass murder.