OU812 (pronounced "Oh You Ate One Too") is the eighth studio album by American rock band Van Halen. It was released in 1988 and is the band’s second album to feature vocalist Sammy Hagar. Van Halen began work on the album in September 1987 and completed it in April 1988, one month before its release. Just like its predecessor 5150, OU812 hit number 1 on the Billboard 200 chart, the second of four consecutive #1 studio albums for the band. Spurred by four Billboard Hot 100 top-40 singles ("Black and Blue", #34; "Finish What Ya Started", #13; "When It's Love", #5; and "Feels So Good", #35), the album eventually sold over 4 million copies. Production Once the 5150 tour concluded, Eddie Van Halen had some riffs he had been working on and Sammy Hagar "had a bunch of lyrics in notebooks that I had been thinking about and writing", so they decided to work on another album soon. While the album acknowledges Van Halen for writing and performing and Landee for recording, there was no production credit because according to Hagar, "the band pretty much produced the album ourselves. And we weren't producers, in the sense that we went in with an idea and told everybody what to do and took control. There just wasn't a producer." The only cover song on the album, Little Feat's "A Apolitical Blues", was coincidentally also done by former Van Halen producer Ted Templeman and Landee, to the point the engineer used the same setup to record Van Halen's version. When Hagar was brought to the studio, Eddie showed a piano and drums demo he recorded with Alex Van Halen, which the band soon developed into the song "When It's Love". Given the musical parts were finished quicker than the lyrics, Hagar took some weeks off and travelled to his Mexican house at Cabo San Lucas to work on more songs. There he found the inspiration for the song "Cabo Wabo", which borrowed the melody of "Make It Last", a song Hagar composed for his previous band Montrose, and whose title later named Hagar's nightclub in the city. The last song to be developed was "Finish What Ya Started", which Eddie and Hagar composed one night late into the production. However, the last track to which Hagar recorded his vocals was the eventual album opener "Mine All Mine", as he felt unsure about the