In two weeks, Wiz Khalifa will embark on his massive Under the Influence of Music tour but one rapper won't join him on his trek. YMCMB artist Tyga has dropped out of the lineup for an undisclosed reason.

On Thursday (July 10), Wiz jumped on Twitter to inform his fans of the news, tweeting, “Tyga dropped off the tour. Sorry ya’ll.”

Although the 'Rack City' rapper is no longer on the bill, the 22-city jaunt still boasts an impressive list of performers. Rappers Jeezy, Rich Homie Quan, Sage the Gemini, Iamsu! and DJ Drama are on the bill as well as R&B singers Mack Wilds and Ty Dolla $ign.

The tour begins on July 24 in Scranton, Pa., and will hit all the major North American cities before wrapping up on Aug. 24 in Irvine, Calif. To cop tickets, head over to Live Nation.

We're not going to speculate on why Tyga exited Wiz's tour. However, the rapper has been keeping himself busy this summer.

Tyga is currently working on the 'Fan of a Fan' album and can be heard on Kid Ink's remix for 'Main Chick' and on Migos' remix of 'Fight Night.'