Get a peek into the lives of the rich and famous with the best of this week's celebrity Instagram pictures...
Justin drives fans crazy at book signing
Justin Bieber is in London to promote his book, Justin Bieber: Just Getting Started. But it hasn't been all work and no play - he's caught up with Niall Horan, his closest friend of the 1D lads, and recorded a session for Radio 1's Teen Awards with Carly Rae Jepsen.
As the 18-year-old exited his hotel, he seemed surprised and even a little overwhelmed by the hundreds of fans waiting to catch a glimpse of him. See what else happened on his London adventure...
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latest celebrity videos
Fergie shows off her slim figure in a bright yellow dress at the TrevorLive LA event with husband Josh Duhamel.
Date 39 mins ago, Duration 0:55, Views 3