This years Superbowl half-time show will feature Bruno Mars, being backed by the Red Hot Chili Peppers. Chili Pepper drummer Chad Smith was at the 2014 Drum-off this past weekend, and commented on the upcoming show:
We're going to play Led Zeppelin's live version of Dazed and Confused.
My Facebook page lit up this morning as this clip spread. However, it appears to me that Smith is talking tongue and cheek, giving an obvious false answer to a question the reporter knew he couldn't answer. As the half-time show is about 15 minutes long, and live versions of Dazed and Confused that have been released range up to 29 minutes long, it seems unlikely.
By way of example, Madonna's 2012 half-time show was 12 minutes long, and the version of Dazed and Confused originally released on The Song Remains the Same Soundtrack (the most known live Dazed and Confused) runs at 26:53. So don't bet on hearing Bruno Mars going into San Fransisco after Josh Klinghoffer's violin bow solo. It ain't happening.
Meanwhile, The Red Hot Chili Peppers tackled (and thoroughly beat into submission) Ramble On back in 2000.