Snoop Dogg -- Wins $20K Bet, Still Flies Southwest

After collecting his $20,000 winnings from his bet with UFC kingpin Dana White in Vegas this weekend, Snoop Dogg refused to blow his wad on a private jet -- instead, Snoop flew Southwest.

Flying economy is how the rich stay rich, fo shizzle.

Lil Wayne -- Alcohol-Free at Nicki Minaj's Birthday

Lil Wayne partied it up at Nicki Minaj's 26th birthday party at TAO in Vegas last night by smoking cigars and drinking ... water.

 Weezy knows you don't have to violate probation to have a good time.

Travis Barker Drums Up Cash for Injured BMX Stars

Travis Barker will give you his drums ... Rob Dyrdek will let you into his Fantasy Factory ... and a Phillies star will teach you how to hit -- all to help 2 badly injured BMX stars pay for their medical bills. 

UFC Prez Dana White is hosting a benefit at Vanity Nightclub in Vegas this Friday to raise money for TJ Lavin and Ty Pinney -- who each wound up in a coma in separate accidents last month. 

Barker, Dyrdek and Shane Victorino are just some of the stars helping out -- we're told a bunch of celebs are also pitching in. 

As for the BMXers -- Lavin is recovering slowly at home. Pinney is currently at a rehab therapy center in Vegas.