Justin Bieber Jr.—that would be 12-year old singing sensation Greyson Chance—already shared a phone convo with his muse Lady Gaga, but now the two have finally met in the flesh. Chance uploaded a Twitpic of he and Gaga (who appears to still be in her 80s rocker phase) backstage at one of the pop star’s recent concerts. “I met @LadyGaga!” he tweeted. “She was so kind, gave me some great advice and put on an amazing show!” Perhaps she advised him to try a cover of “Alejandro” next? [PopEater]