Question: Who performed the character with which  Ozzy Osbourne sang "Born to be Wild" in the music and comedy record "Kermit Unpigged"?
Context: "Over the Mountain" is the opening track of heavy metal musician Ozzy Osbourne's album "Diary of a Madman".  The song debuted at number 42 on the "Billboard" Top Tracks chart and reached as high as 38.  The song was written by Osbourne, Bob Daisley, Lee Kerslake and Randy Rhoads.  The song was later included on the Ozzy Osbourne compilation albums, "The Ozzman Cometh" on 11 November 1997, "The Essential Ozzy Osbourne" on 11 February 2003 and "Prince of Darkness" on 22 March 2005.  Fozzy did a cover of the song with Butch Walker on vocals and guitar. Jack Joseph Osbourne (born 8 November 1985) is an English media personality with dual American and British citizenship.  As the son of heavy metal singer Ozzy Osbourne, he starred on MTV's reality series "The Osbournes" (2002–05), along with his father, mother Sharon, and sister Kelly.  Osbourne has since pursued a career as a fitness and travel reporter, presenting shows such as "" (2005–09) and BBC's "Saving Planet Earth" (2007).  He was diagnosed with relapsing remitting multiple sclerosis in 2012.  As of summer 2016, he and father Ozzy are travelling the world in the History Channel reality series "Ozzy & Jack's World Detour". Trust Me, I'm Dr. Ozzy: Advice from Rock's Ultimate Survivor (shortened to Trust Me, I'm Dr. Ozzy) is a book by Ozzy Osbourne, vocalist of Black Sabbath and solo singer.  It is the sequel to his 2010 release "I Am Ozzy".  The book chronicles his drug abuse and survival stories about 40 years of Ozzy's drug and alcohol abuse.  It also features Osbourne's health advice.  The book was co-written by Chris Ayres, because of Osbourne's dyslexia. Kermit Unpigged is a music and comedy record released by The Jim Henson Company through BMG Kidz in 1994, and the last album released by Jim Henson Records.  The record’s title is a clear parody of the MTV series “MTV Unplugged”, and the cover is a parody of Eric Clapton's "Unplugged" album cover as well.  The album consisted of Kermit and the other Muppets getting lost at a recording studio and encountering celebrities including Linda Ronstadt, with whom Kermit sang “All I Have to Do is Dream”, Vince Gill who sang “Daydream” with Kermit, Jimmy Buffett who sang “Mr. Spaceman” with Gonzo, and Ozzy Osbourne with whom Miss Piggy sang “Born to be Wild.”  The album ends with all The Muppets meeting back up and singing the Beatles song “All Together Now.” No More Tears is the sixth studio album by British heavy metal vocalist and songwriter Ozzy Osbourne.  Released on 17 September 1991, the album charted at number 17 on the UK Albums Chart and number seven on the US "Billboard" 200 albums chart.  "No More Tears" spawned four songs which reached the top ten of the US Hot Mainstream Rock Tracks chart, including the number-two "Mama, I'm Coming Home", and it contains the Grammy-winning track "I Don't Want to Change the World".  It is also one of Osbourne's two best-selling albums in North America, along with "Blizzard of Ozz", having been certified quadruple platinum by the RIAA and double platinum by CRIA.  It was the last Ozzy Osbourne album to feature drummer Randy Castillo and bassist Bob Daisley. Ozzfest is an annual festival tour of the United States and sometimes Europe (and for the first time Japan in 2013) featuring performances by many heavy metal and hard rock musical groups.  It was founded by Ozzy Osbourne and his wife Sharon Osbourne, both of whom also organise each yearly tour with their son Jack Osbourne.  The Ozzfest tour has featured bands of a variety of genres within heavy metal and hard rock, including alternative metal, thrash metal, industrial metal, metalcore, hardcore punk, deathcore, nu metal, death metal, post-hardcore, gothic metal and black metal.  Ozzy Osbourne and Black Sabbath have played the tour several times over the years. The Diary of a Madman Tour was the second concert tour by English heavy metal vocalist Ozzy Osbourne.  It was undertaken in support of Osbourne's second album "Diary of a Madman" and covered Europe, North America, and Asia.  This was Rhoads's last tour as he died in a plane crash at a small airport in Leesburg, Florida, on March 19, 1982, during the first leg of the tour.  The band took a two-week break after his death.  Ozzy and Sharon Osbourne restarted the tour with ex-Gillan guitarist Bernie Tormé, who only performed a couple of shows before being replaced by future Night Ranger guitarist, Brad Gillis. Behind The Player: Blasko is an Interactive Music Video featuring Ozzy Osbourne bassist Rob "Blasko" Nicholson.  Released on November 1, 2008 by IMV, the DVD features Blasko giving in-depth bass lessons for how to play "Dragula" by Rob Zombie and "I Don't Wanna Stop" by Ozzy Osbourne and an intimate behind-the scenes look at his life as a professional musician, including rare photos and video.  The DVD also includes Blasko jamming the two tracks with Rob Zombie drummer Tommy Clufetos, VideoTab that shows exactly how Blasko plays his parts in the two songs, as well as other bonus material. Miss Piggy is a Muppet character known for her breakout role in Jim Henson's "The Muppet Show".  Since her debut in 1976, Miss Piggy is notable for her volatile diva personality, tendency to use French phrases in her speech and practice of karate.  She was also known for her on-again/off-again relationship with Kermit the Frog, which began in 1978 and has been on a hiatus since 2015.  Frank Oz performed the character from 1976 to 2000 and was succeeded by Eric Jacobson in 2001. "Psycho Man" is a single by heavy metal band Black Sabbath.  It was originally released on the "Reunion" album in 1998, and was the first of two new singles from the album, the other being "Selling My Soul."  The song reached number 3 on the U.S. Mainstream Rock chart.  The song was later included in Ozzy Osbourne's 2005 box set "Prince of Darkness".  The music and lyrics were written by singer Ozzy Osbourne and guitarist Tony Iommi.  Psycho Man and Selling My Soul are the only Black Sabbath songs to be credited just to these two members.
Answer: Frank Oz