Wiz Khalifa fans: You can breathe a sigh of relief now. When the 24-year-old Pittsburgh rapper tweeted out the link to his mixtape around 9 p.m. Tuesday, so many fans flocked to the site, DatPiff, that it crashed, and made the mixtape temporarily unavailable. It’s back up and running now.

Wiz Khalifa performs during the Bonnaroo Music and Arts Festival in Manchester, Tenn., Saturday, June 11, 2011. (Dave Martin/AP)

“Taylor Allderdice” is named after Khalifa’s Pittsburgh high school. It features collaborations with Rick Ross, Chevy Woods, Juicy J, and Khalifa’s fiancee, Amber Rose. After the site crashed, Khalifa tweeted, ”Yeah Taylors, we crashed that s--t!!!”

The mixtape comes in advance of Khalifa’s new studio album, “O.N.I.F.C.,” which will be released later this year. On that album, Khalifa will collaborate with Cam’ron. “I did that more justice than putting it on the mixtape, because I've been waiting for that collaboration forever," Khalifa told MTV.