Nabbr, a distributor of music videos via widgets, has completed a third round financing led by Allen & Co., a company representative said. The amount of this and the last two fundings were not disclosed. As we reported last July, music label S-Curve Records participated in its second round. In addition to Allen & Co. and S-Curve, New York-based Nabbr has attracted a number of new backers, including: Michael Wolfson, formerly of AOL and founder/CEO of Rocket Fuel; former Paramount Pictures CEO Jonathan Dolgen, president of Phoenix Pictures Arnold Messer; PrimaryWave Music Publishing founder Larry Mestel and former President of MDC Partners Steven Berns.