Ozzmosis is the seventh studio album by English heavy metal singer Ozzy Osbourne. Recorded in Paris and New York with producer Michael Beinhorn, it was released on 23 October 1995 by Epic Records. The album reached number 22 on the UK Albums Chart and number four on the US Billboard 200. "Perry Mason", "See You on the Other Side" and "I Just Want You" were released as singles.

After the release of his sixth album No More Tears in 1991, Osbourne announced that he would retire from music. However, he returned with Ozzmosis in 1995, which featured long-time guitarist Zakk Wylde as well as former Black Sabbath bassist Geezer Butler and drummer Deen Castronovo. Producer Michael Beinhorn played most of the keyboards on the album, while Rick Wakeman played the Mellotron on the songs Perry Mason and I Just Want You. Osbourne later appeared as a guest vocalist on Wakeman's 1999 album Return to the Centre of the Earth.

Ozzmosis received mixed reviews from critics. It was one of many Osbourne albums remastered and reissued in 2002. The reissue featured bonus tracks "Whole World's Fallin' Down" and "Aimee", originally released as B-sides to "Perry Mason" and "See You on the Other Side", respectively. The album has been certified double platinum by the Recording Industry Association of America and has sold over 3 million copies.

Recording took place at Guillaume Tell Studios in Paris, France, Right Track Recording and Electric Lady Studios in New York City, and Bearsville Studios in Woodstock, New York.^[2] Production was led by Michael Beinhorn, with Paul Northfield engineering and David Bianco mixing.^[2] Writing credits on the album – alongside Osbourne, guitarist Zakk Wylde and bassist Geezer Butler – were shared by John Purdell, Jim Vallance, Mark Hudson, Steve Dudas, Lemmy Kilmister, Duane Baron and Steve Vai.^[2]

Ozzmosis was Ozzy's first and only album to feature Butler, drummer Deen Castronovo and keyboardist Rick Wakeman.^[3] Guitars were by his long-time band member Wylde, although Steve Vai was originally slated to perform on the album after writing songs with Osbourne in 1994 (of which only "My Little Man" remained).^[4] Vai reportedly left the project due to a "falling out" with Osbourne,^[4] although Wylde maintains they are still friends.^[5]

Prior to Beinhorn's involvement, Ozzmosis was to be produced by Michael Wagener, who had mixed the preceding No More Tears.^[6] Songs were recorded with Wagener, and a different lineup including bassist Mike Inez and drummer Randy Castillo, with the intention of making the album sound similar to No More Tears. Pre Production with that lineup happened at Granny's House Recording Studio in Reno, NV in early 1994 after the "No More Tours" Tour. However, with seven songs completed, Epic Records allegedly requested a change in production style and replaced Wagener with Beinhorn.^[6] Of Wagener's produced material, "Perry Mason", "See You on the Other Side", "Tomorrow" and "Old LA Tonight" were rerecorded with Beinhorn, "Aimee" and "Living with the Enemy" were released as B-sides, and "Slow Burn" remained unreleased. Wagener's version of "See You on the Other Side" was later released on 2005 box set Prince of Darkness and his demo of "Perry Mason" was released in 2005.^[6]

"After doing Ozzmosis with Michael Beinhorn producing," Ozzy remarked in 2001, "I didn't care if I never made another album again. There'd be these fucking mind games. He'd have me singing all day, and then I'd get three-quarters through and he'd go, 'Your voice sounds tired. Let's pick it up tomorrow.' And I knew that the next day he'd go, 'Your voice has changed. Let's start again.'"^[7]

Three singles were released from Ozzmosis. The first was "Perry Mason" in November 1995, which reached number 23 on the UK Singles Chart and number three on the Billboard Mainstream Rock Songs chart.^[8][9] "See You on the Other Side", released on 9 January 1996,^[10] charted in the US at number five on the Mainstream Rock chart and in Sweden at number 59.^[9][11] The third and final single, "I Just Want You", charted in the UK at number 43 and in the US at number 24 on the Mainstream Rock chart.^[8][9]

In support of the album, Osbourne and his band completed the Retirement Sucks! Tour, named in reference to Osbourne's previous tour, the No More Tours Tour, which was originally slated to be his last before his retirement from music.^[3] The tour started in Monterrey and Mexico City on 26–28 August.^[12] Speaking about his return to touring, Osbourne joked that "If you stayed at home, day in and day out, for 3 years with your wife and a house full of screaming kids, you'd want to get back out on the road too!"^[13] The tour continued through 1996.^[10]

• Ozzy Osbourne – vocals
• Zakk Wylde – electric guitar
• Geezer Butler – bass
• Deen Castronovo – drums

• Michael Beinhorn – production, keyboards
• Michael Wagener – production ("Aimee")
• Paul Northfield – engineering
• John Bleich – engineering assistance
• Matt Curry – engineering assistance
• Chris Laidlaw – engineering assistance
• Joe Pirrera – engineering assistance
• Rodolphe Sanguinetti – engineering assistance
• Brian Sperber – engineering assistance
• David Bianco – mixing
• George Marino – mastering
• Vic Anesini – mastering (reissue)
• David Coleman – art direction
• Rocky Schenck – photography
• Phil Alexander – liner notes (reissue)