Rockaholic is the eighth studio album by American rock band Warrant, released on May 17, 2011.
 The album features the band's third lead singer, Robert Mason, who replaced original lead singer Jani Lane in 2008.
 Lane returned to the band for a 2008 reunion tour but by the end of the year, he and the band parted ways for the second time.
 Lane had previously replaced former lead singer Jaime St. James, who performed lead vocals on the band's last album, "Born Again", and who initially replaced Lane in 2004.
Julie Christmas (born 25 December, 1975) is an American musician from Brooklyn, New York.
 Christmas is her legal middle name, named so after the fact that she was born on Christmas day.
 She is the former lead singer of defunct Brooklyn-based noise rock band Made Out of Babies and the former lead singer of defunct post-metal supergroup Battle of Mice.
 In 2010, she released a critically acclaimed solo album titled "The Bad Wife", and in 2016, she became a featured member on the Swedish post-metal band Cult of Luna's album "Mariner".
Sean O'Grady (born February 10, 1959) is the former WBA Lightweight Champion of the World, and currently an American commercial realtor.He was born in Austin, Texas.
 The son of boxing trainer Pat O'Grady and boxing promoter Jean O'Grady, he moved around a lot when he was a younger kid, but his family settled in Oklahoma City, when he was 11 years old.
 In addition to being a world champion, O'Grady is also a college graduate, boxing analyst, television personality, actor and former teen idol across the United States Midwest.
 In the middle of his boxing career, Sean was popular among teen girls around his area, and it wasn't uncommon to see teenaged females from Oklahoma and its adjacent states wearing Sean O'Grady T-shirts or anything else related to him.
 He regularly chewed bubble gum upon entering the ring prior to fights, and because of this, he earned the nickname "Bubble Gum Bomber."
Thomas Adrian "Tommy" Sands (born August 27, 1937) is an American pop music singer and actor.
 Working in show business as early as 1949, Sands became an overnight sensation and instant teen idol when he appeared on "Kraft Television Theater" in January 1957 as "The Singin' Idol".
 The song from the show, "Teen Age Crush", reached #2 on the "Billboard" Hot 100 and #1 on Cashbox.
Pat Upton (August 5, 1940 – July 27, 2016), was an American singer, songwriter and guitarist with the band Spiral Starecase.
 He was the songwriter and lead vocalist in their 1969 single "More Today Than Yesterday" which peaked at 12 on the "Billboard Hot 100" chart, earning a gold disc.
 The song has been covered by Sonny & Cher, Diana Ross, Andy Williams, Lena Horne, Patti Austin and others.
 Upton later became a session musician and member of Ricky Nelson's band.
Eric Hilliard Nelson (May 8, 1940 – December 31, 1985) was an American actor, musician, and singer-songwriter.
 From age eight he starred alongside his family in the radio and television series "The Adventures of Ozzie and Harriet".
 In 1957 he began a long and successful career as a popular recording artist.
 As one of the top "teen idols" of the 1950s his fame led to a motion picture role co-starring alongside John Wayne and Dean Martin in Howard Hawks's western feature film "Rio Bravo" (1959).
 He placed 53 songs on the "Billboard" Hot 100 between 1957 and 1973 including "Poor Little Fool", which holds the distinction of being the first #1 song on "Billboard" magazine's then-newly created Hot 100 chart.
 He recorded 19 additional Top 10 hits and was inducted into the Rock and Roll Hall of Fame on January 21, 1987.
 In 1996, he was ranked #49 on TV Guide's 50 Greatest TV Stars of All Time.
Miku Ishida (石田未来 , Ishida Miku , born June 15, 1988) is a Japanese female singer and used to be a gravure idol, actress and a teen idol, had belonged to the show-business production "LesPros Entertainment" from 1999 to 2008.
 She is from Komaki, Aichi, and graduated from "Hinode High School" in March 2007.
 Then, on 9 October 2008, she retired as an actress.
Timothy Robert "Tim" Maurer (born October 10, 1980) is an American singer, best known as the former lead singer of third-wave ska band Suburban Legends.
 He has left the band on two separate occasions.
 The first was in 2000 after the recording of Origin Edition.
 He rejoined the band in early 2002 after his replacement singer Chris Batstone left the band.
 He officially left the band again in September 2005 after the band's third consecutive appearance on the Jerry Lewis MDA Telethon, performing a new song entitled "Moving Closer."
 The band's former trumpet player, Vincent Walker, rejoined the band for the performance, then took over as lead singer afterward.
 Maurer returned for a final performance with the band on November 29, 2005 at Huntington Beach High School for a benefit show for the Ryan Dallas Cook Memorial Fund, which was set up following the death of Suburban Legends' trombonist Dallas Cook.
Kenichi Hagiwara (萩原健一; "Hagiwara Ken'ichi", born 26 July 1950 in Omiya, Saitama, Japan), also known as Sho-Ken, was the lead singer of The Tempters , the "bad boys" of the Group Sounds Japan pop scene in the mid and late 1960s.
 A teen idol with a legion of loyal fans, Hagiwara was known for his good looks and arrogance, which appealed to both young male and female Japanese fans.
Gus Monsanto is the stage name of Gustavo Monsanto (born 5.
 November 1974 in Petrópolis, Rio de Janeiro state, Brazil) is the former lead singer of the French progressive metal band Adagio, and former lead singer of Finnish band Revolution Renaissance formed by Timo Tolkki after he left Stratovarius.
 He is the brother of journalist Eduardo Monsanto of ESPN Brazil.

Question: What former "teen idol" was in a band with the former lead singer of Spiral Suitcase.
Answer: Ricky Nelson