Lil Wayne Joins Diddy and Mase For 'Mo Money, Mo Problems' At Vegas Pool Party

They were doing more than just brawling at the Las Vegas pool parties this weekend.

Diddy's chlorinated event, which took place Saturday afternoon at the SLS Hotel & Casino's Foxtail Pool Club, took it back to the '90s with a rendition of the Notorious B.I.G. classic 'Mo Money Mo Problems'.

This wasn't a hologram situation, so there was obviously no Big. But Puffy brought Ma$e along, and Lil Wayne also jumped on stage as a special guest.

Weezy did two-fisters one better during his performance: he had two drinks in one hand so he could use his other to smoke.

The sound qaulity is a bit shaky, but it certainly looks like a good time was had by all.