Question: What was the most successful album on which Bret Michaels was the lead singer?

full_context: Document 1: Rock of Love with Bret Michaels (season 1): Rock of Love with Bret Michaels is a competition-driven reality television series starring Bret Michaels, the lead singer of the band Poison. The 12-episode series, which premiered July 15, 2007 on VH1 (a VSPOT online premiere showcased on July 10), was created by Cris Abrego and Mark Cronin (co-founders of the production company 51 Minds).
Document 2: Purple (album): Purple is the second studio album by the American rock band Stone Temple Pilots, released on June 7, 1994 by Atlantic Records. The album, building off the foundations laid by the band's debut album "Core", was a huge success for the band, debuting at #1 on the "Billboard" 200 chart and remaining there for three weeks, eventually selling over six million copies. It spawned a number of successful singles — "Vasoline" and "Interstate Love Song" both topped the Mainstream Rock Tracks chart and hit number 2 on the Modern Rock Tracks chart, while "Big Empty" also cracked the top ten on both charts. Lesser known album cuts "Pretty Penny" and "Unglued" were also released as promotional radio singles.
Document 3: Bret Michaels: Bret Michael Sychak (born March 15, 1963), professionally known as Bret Michaels, is an American singer-songwriter and musician. He gained fame as the lead singer of the glam metal band Poison who have sold over 50 million records worldwide and 15 million records in the United States alone. The band has also charted ten singles to the Top 40 of the "Billboard" Hot 100, including six Top 10 singles and a number-one single, "Every Rose Has Its Thorn".
Document 4: Poison discography: The following is a comprehensive discography of Poison, an American rock band that achieved huge success in the mid- 1980s to mid- 1990s. To date, the band has sold over 45 million records worldwide and has sold more than 15 million records in the United States alone. The band has also charted ten singles to the Top 40 of the "Billboard" Hot 100, including six Top 10 singles and the Hot 100 number-one single, "Every Rose Has Its Thorn".
Document 5: A Letter from Death Row (album): A Letter from Death Row is the debut solo album by Bret Michaels, the lead singer of the rock band Poison. The album was released August 25, 1998, and is a soundtrack to the movie "A Letter from Death Row" which Bret Michaels wrote, directed and starred in.
Document 6: Pour Some Sugar on Me: "Pour Some Sugar on Me" is a song by the English rock band Def Leppard from their 1987 album "Hysteria". It reached number 2 on the US "Billboard" Hot 100 on 23 July 1988, behind "Hold On to the Nights" by Richard Marx. "Pour Some Sugar on Me" was ranked #2 on VH1's "100 Greatest Songs of the 80s" in 2006.
Document 7: W.A.S.P.: W.A.S.P. is an American heavy metal band formed in 1982 by Blackie Lawless, who is the only remaining original member of the band. They emerged from the same Los Angeles scene that spawned Van Halen, Mötley Crüe, Dokken, Ratt, Quiet Riot, Guns N' Roses, Great White, Stryper, L.A. Guns, Leatherwolf and others. The band's popularity peaked in the 1980s, yet they continue to record and tour, making them one of the most enduring of the West Coast heavy metal bands. W.A.S.P. gained notoriety for their shock rock-themed image, lyrics and live performances. They have sold over 12 million copies of their albums.
Document 8: A Letter from Death Row (film): A Letter From Death Row is a 1998 psychological thriller film directed by Marvin Baker and Bret Michaels, lead singer of the hard rock band Poison. Bret Michaels also wrote the film and starred in it. The film was released by Sheen Michaels Entertainment, a company created by Bret Michaels and actor Charlie Sheen. The film was produced by Shane Stanley and also stars Martin Sheen, Charlie Sheen, and Kristi Gibson, who was Michaels' girlfriend at the time.
Document 9: Songs of Life (Bret Michaels album): Songs of Life is the second solo studio album by Bret Michaels, lead singer of the rock band Poison. The album was released April 22, 2003 and coincides with the same date of his two-year-old daughter Raine's birthday. The album is written and produced by Bret Michaels, Cliff Calabro and co-produced by Jeremy Rubolino. The music is inspired by events from Bret Michael's life.
Document 10: Ratt: Ratt is an American heavy metal band that had significant commercial success in the 1980s, with their albums having been certified as gold, platinum, and multi-platinum by the RIAA. The group is perhaps best known for hit singles such as "Round and Round" and "Lay It Down", tracks that ranked on Billboard's top 40 at No. 12 and No. 40, respectively, as well as other songs such as "Wanted Man", "You're in Love" and "Dance". Along with groups such as friendly rivals Mötley Crüe, Ratt has been recognized as instrumental in the formation of the early 1980s Los Angeles glam metal scene, also known as "hair metal" or "pop metal".
Document 11: Poison (American band): Poison is an American rock band that achieved great commercial success in the mid-1980s to the mid-1990s. Poison has sold over 40 million records worldwide and has sold 15 million records in the United States alone. The band has also charted ten singles to the Top 40 of the "Billboard" Hot 100, including six Top 10 singles and the Hot 100 number-one, "Every Rose Has Its Thorn". The band's breakthrough debut album, the multi-platinum "Look What the Cat Dragged In", was released in 1986 and they hit their peak with the second album, "Open Up and Say... Ahh!", which became the band's most successful album, being certified 5x platinum in the US. The popularity continued into the new decade with their third consecutive multi-platinum selling album, "Flesh & Blood".
Document 12: Poison (Alice Cooper song): "Poison" is a song by American rock singer-songwriter Alice Cooper. Written by Cooper, Desmond Child, and John McCurry, the song was released worldwide as a single in late-1989 from Cooper's eighteenth album, "Trash" (1989). The song was one of Cooper's biggest hit singles in the United States, peaking at number 7 on the "Billboard" Hot 100, while peaking at number 2 in the UK Singles Chart, only being held off the top spot by the dance record, "Swing the Mood" by Jive Bunny & the Mastermixers. "Poison" is one of Alice Cooper's best known songs. It is ranked by "Billboard" as the "91st top song of 1989", while Ultimate Classic Rock ranked it as the "6th best Alice Cooper song", commenting "Poison sounds like a typical ’80s pop-metal number at times, but Cooper’s intensity brings it to a whole other level."
Document 13: Ballads, Blues &amp; Stories: Ballads, Blues & Stories is a unique storytellers music CD from Bret Michaels, the lead singer of the rock band Poison. Released in 2001 it consists of Bret Michaels' solo music and Poison songs, with a recorded story before each song, about how the songs were created and written.
Document 14: Rock of Love with Bret Michaels: Rock of Love with Bret Michaels is an American reality television dating game show. It stars Bret Michaels, the lead singer from the band Poison. The show closely resembles its sister show "Flavor of Love". The first season featured 25 women competing to be Michaels' girlfriend. Each week, the women face challenges, the winner of which gets to go on a date with Michaels. Some of the challenges were based on situations that they might encounter if chosen to be Michaels' girlfriend. The first season winner was 24-year-old Jes Rickleff from Naperville, Illinois. At the reunion, she revealed that she did not have romantic feelings for Michaels, and that she thought that he should have chosen the runner-up, Heather.
Document 15: Warrant (American band): Warrant is an American glam metal band formed in 1984 in Hollywood, Los Angeles, California, that experienced success from 1989 to 1996 with five albums reaching international sales of over 10 million. The band first came into the national spotlight with their 2× platinum debut album "Dirty Rotten Filthy Stinking Rich", and one of its singles, "Heaven," reached No. 1 in "Rolling Stone" and No. 2 on the "Billboard" Hot 100. The band continued its success in the early 1990s with the 2× platinum album "Cherry Pie" which provided the hit album titled song and music video.
ground_truth: Open Up and Say... Ahh!