On Tuesday, Feb. 19, Bonnaroo fans will finally learn the 2013 lineup for the Tennessee music festival. How, when and where will the big announcement go down? We've got all the answers for BLAM!

BLAM stands for Bonnaroo Lineup Announcement Megathon, which will be hosted by parody singer Weird Al Yankovic. Set to take place on Tuesday, Feb. 19, the BLAM festivities start online at noon.

From noon to 1 p.m., EST, Weird Al will recap some of the "classic Bonnaroo concert moments." The "history of Bonnaroo" will feature "historic performances" from artists like Tom petty and the Heartbreakers, Metallica, Phish, Bon Iver and more. At 1 p.m. is BLAM time! For an hour Weird Al will host the Bonnaroo Lineup Announcement Megathon, revealing all the bands set to take over the Manchester, Tenn., farm. Following BLAM from 2 to 3 p.m., viewers will be gifted with a very special one-time only "surprise classic Bonnaroo concert."

Bonnaroo-vians can watch the lineup announcement live on Bonnaroo365's YouTube, as well as syndicated on Bonnaroo.com.

During the event fans can look forward to special live performances by Portugal. The man and Weird Al Yankovic. Fans also have the opportunity to get involved in BLAM as well. According to a message on the Bonnaroo Facebook page, "The viewing audience will be playing a major role in announcing the lineup. Details to come!"

For those hoping to learn the answers to the 14 Roo Clue's that have been released over the past couple weeks, a post on the Bonnaroo Facebook page revealed that the Roo Clue answers would be provided on that Wednesday.

The 2013 Bonnaroo Music & Arts Festival is set to take place in Manchester, Tenn., from June 13 to 16.

Click HERE to RSVP to BLAM on Facebook.

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