This week, Lady Gaga channels Gwen Stefani and looks absolutely gorgeous, Jared Leto strikes a pose with an elephant and Taylor Swift throws it way back to 2005 with one awesome dress-up pic!

And, 50 Cent hangs with his lookalike little boy, Zoe Kravitz gets some major love from Cara Delevingne and Dakota Johnson and Justin Bieber hangs out with Lil Wayne.

Plus, John Stamos shows off his Calvins, Nicki Minaj flaunts some major cleavage and Hilary Duff hits the recording studio in Sweden!

Click "Launch Gallery" above to see these stars' personal pics and check out even more celeb selfies in this week's best celebrity TwitPics!

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