50 Cent Goes After Chief Keef For Ditching Video Shoot

After publicly feuding with longtime friend and business partner Floyd Mayweather via the Twitterverse and separating from the boxer's TMT Promotions, 50 Cent got the last laugh in Nevada on Thursday after his application to promote boxing was approved.

But all things in the Silver State didn't go 50's way, though, as rap newcomer Chief Keef reportedly spurned a scheduled video shoot for the song "Hate Being Sober," from his upcoming debut, Finally Rich, featuring 50 and Wiz Khalifa.

Fif took to Twitter to scold the Interscope rookie on his lack of professionalism: "@chiefkeef didn't show up to his own video. I never saw anything like this on the first song," 50 tweeted (since deleted), adding, "Its not funny @ChiefKeef didn't sell any records yet,they will pull the plug on him.SMSAUDIO."

The Chicagoan's stiff arm must have been disappointing to 50, who co-signed the young spitter's talent over French Montana's after he had an online war of words with the "Pop That" MC: "Hip Hop best new artist @chiefkeef hands down. SMSaudio." 50 even elaborated about Sosa's music after working with him in the studio, tweeting at one point, "I did a new joint to night with @chiefkeef he got some heat."

Not one to dwell on the negative, 50 joined Wiz Khalifa onstage Thursday night for his 2050 Tour stop in Vegas. MTV News watched as the rapper born Curtis Jackson surprised the Sin City crowd by rapping along to his 2007 hit "I Get Money."

The concert may have also served as a celebration for 50's new promoting position with his new company, SMS Promotions, which was approved by the Nevada State Athletic Commission with a 5-0 vote at its monthly meeting. The Queens representer initially applied for a license under the TMT umbrella, but after Mayweather did not provide his share of the money he promised to the company, the "New Day" MC reapplied for the license under his own imprint.

The G-Unit general still has to provide the commission with three additional pieces of information to complete his application, but he, along with attorney Leon Margules, promised to provide the outstanding documentation, which includes two years' worth of income tax returns, a financial statement listing the fighters under contract with SMS and a letter stating that assets formerly under TMT's name were moved to SMS, within the week, according to ESPN.

During his hearing with the commission, 50 revealed that he had invested $1.5 million in acquiring fighters after he and Mayweather agreed to promote boxing together and wanted to "move forward" on his own, despite his dissolved business relationship with the boxer.

Tell us what you think of the 50's beef with Chief Keef in the comments!