MTV debuted "Nirvana Live and Loud" on New Year's Eve in 1993. Now, 10 years later, MTV and VH1 have unveiled two never-before-seen rehearsals and two performances from the concert. The news coincides with the 20th anniversary and re-issue of Nirvana's third and final album, In Utero

Starting today, MTV and VH1 will roll out exclusive performances via Artists.MTV and Artists.VH1 beginning with “Heart-Shaped Box” (which you can view below), and “Rape Me” tomorrow. On Friday, MTV News will debut an oral history of the show from MTV staffers and executives, including how the concert came together, Kurt Cobain’s response to Pearl Jam bowing out, as well as what made the performances so memorable. Additionally, MTV News will unearth additional archival footage and interviews with the band.

Next Monday, Sept. 23 (the day before In Utero's 20th birthday), MTV and VH1 will premiere the rehearsal performances of “Radio Friendly Unit Shifter” and “Very Ape,” which features a glimpse of Kurt Cobain playing drums. The full “Live and Loud” concert will premiere commercial-free on VH1 Classic Monday, Sept. 23 at 8 p.m. EDT/PDT. The DVD will be released the following day.

Check out their performance of "Heart-Shaped Box" from "Nirvana Live and Loud" below.