Nick and Joe Jonas have both made a demonstrable switch in music tone -- they're still POP ACTS, but their music borders on R&B.
And their PERSONAL LIVES are R&B also. As MediaTakeOut.com broke a few weeks ago, Nick is currently dating his backup singer "Cherry D." See pic below:
Brother Joe is following in Nick's footsteps and also dating a sista. A fan snapped a pic of Joe and a woman getting on a plane. according to the person taking the pic - the two DEFINITELY were couple'd up.