HAARP is a CD/DVD live package by the English rock band Muse released on March 14, 2008 digitally, March 17, 2008 in the UK, and April 1, 2008 in the US. The package comprises video and audio footage from the band's two concerts performed at Wembley Stadium in June 2007. The DVD contains a 20-track setlist from the second night, June 17, and the CD a 14-track setlist recorded on the previous night, the 16th.

In the build-up to the release of the recordings, the band released a number of web-format clips from the DVD. The full performance of Unintended was added to the band's official website on Christmas Eve, 24 December 2007, dubbed as a "little taste of things to come". On 11 January 2008, a microsite at www.he-3.mu was announced, featuring a grid of six boxes representing thumbnails of short clips from the DVD. As of March 17, all six clips had been filled, featuring short clips from "Knights of Cydonia", "Supermassive Black Hole", "Feeling Good", "New Born", "Blackout" and the outro riffs of "Stockholm Syndrome". "Feeling Good" was also released in full to radio and television stations shortly afterwards, although it was not advertised on Muse's official website. Vue cinemas held special screenings of the concert on March 11, 2008 at selected cinemas. The concert was shown in high-definition and surround sound.

A special edition of HAARP was also released, featuring additional backstage footage and bonus postcards showing pictures of the three band members.

The CD/DVD is named after the High Frequency Active Auroral Research Program, which vocalist Matthew Bellamy (known for his interest in global conspiracies and the New World Order Conspiracy which influences the band's music) has suspicions of.

The H.A.A.R.P microsite is now available for visitors to download iPod and iPod Touch/iPhone formatted videos and mp3s of Knights of Cydonia, Supermassive Black Hole, Unintended and Plug in Baby featured on the DVD, for free. Included is a bonus video of Micro Cuts, an mp3 of Solider's Poem from the Saturday performance and wallpapers.