Usher, Justin Timberlake, Janelle Monae and Lady Gaga are now allowed to tweet to their hearts content. Alicia Keys’ morbid Buy Life fundraiser, the one that “killed off” many celebrities’ digital lives until $1 million was raised, was off to a very slow start — apparently, many people would rather the Kardashians didn’t tweet — but thanks to a billionaire donating $500,000, they have reached their goal. Did you guys miss Gaga’s words of wisdom to her little monsters, or did you barely notice a change in your Twitter feed?