Could yet another "Jelena" reunion be on the horizon? Over the weekend Justin got patrons at a piano bar in L.A. scrambling for their phones when he jumped behind the piano to serenade Selena Gomez with a little "my Girl" by the Temptations. All together now... "Awwwwwww..." The two proceeded to slow dance to some Lionel Richie tunes and then take a stroll outside. He's been working so hard on a career comeback.. perhaps a relationship comeback is next for these two? Gotta admit, i'm pulling for him.