Background: O-Town is an American boy band formed from the first season of the MTV-produced reality television series Making the Band in 2000. As of 2015 the group consists of Erik-Michael Estrada, Trevor Penick, Jacob Underwood, and Dan Miller. The most popular line up also included Ashley Parker Angel, who refused to participate in the 2013 reunion. Ikaika Kahoano was originally part of the band but replaced by Miller after dropping out of the group.
Context: The members of O-Town moved on to solo careers. The most successful member of the group has been Ashley Parker Angel, who was signed to Universal's Blackground Records, and also given his own reality show on MTV, There and Back. Released in 2006, Ashley's solo debut album was heavily promoted, but did not achieve solid sales numbers. In January 2007, he began playing the role of Link Larkin in the Broadway production of Hairspray. Ex-bandmate, Trevor Penick, now professionally known as "Tre Scott", was signed to Mach 1 Music, and worked with established industry producer Eddie Galan. The other band members retained a fanbase and had success in their own right, as evidenced by their Myspace profiles. Erik stayed in the music business and went on to collaborate and co-write songs for other artists. Jacob Underwood went on to start his own country band "Jacobs Loc". Back in January 2011, rumors were swirling that a reunion was in the works for the band. TMZ reported that Erik, Trevor, Dan & Jacob have returned to the studio to record the follow-up to O2, however, it was confirmed that Ashley Parker Angel declined the offer from the guys. He told TMZ in a following article his explanation. "O-Town was one of the greatest chapters of my life, so when the idea of a reunion was brought to me, of course I was intrigued. However I have made the decision not to be a part of an O-Town reunion. It was a difficult decision, but ultimately necessary to move on with the next chapter of my career." He has, however, given the guys his blessing for them to reunite without him. When interviewed about his rejection, Erik said that the guys eventually come to terms with it, but admitted "I would just think he would want to come on board and be a part of it ... but he doesn't and that's cool." The remaining guys continued to pursue the reunion over the next few years, keeping details very private.
Question: Who in the group had a solo career?
Answer: The most successful member of the group has been Ashley Parker Angel, who was signed to Universal's Blackground Records,

Background: Mark Lavon "Levon" Helm (May 26, 1940 - April 19, 2012) was an American musician and actor who achieved fame as the drummer and one of the vocalists for The Band. Helm was known for his deeply soulful, country-accented voice, multi-instrumental ability, and creative drumming style, highlighted on many of the Band's recordings, such as "The Weight", "Up on Cripple Creek", and "The Night They Drove Old Dixie Down". Helm also had a successful career as a film actor, appearing as Loretta Lynn's father in Coal Miner's Daughter, as Chuck Yeager's friend and colleague Captain Jack Ridley in The Right Stuff, and as a Tennessee firearms expert in Shooter. In 1998, Helm was diagnosed with throat cancer, which caused him to lose his singing voice.
Context: Helm returned to the group, then referred to simply as "the band", as it was known around Woodstock. While contemplating a recording contract, Helm had dubbed the band "the Crackers." However, when Robertson and their new manager Albert Grossman worked out the contracts, the group's name was given as "the Band." Under these contracts, the Band was contracted to Grossman, who in turn contracted their services to Capitol Records. This arrangement allowed the Band to release recordings on other labels if the work was done in support of Dylan. Thus the Band was able to play on Dylan's Planet Waves album and to release The Last Waltz, both on other labels. The Band also recorded their own album Music from Big Pink (1968), which catapulted them into stardom. On Music from Big Pink, Manuel was the most prominent vocalist and Helm sang backup and harmony, with the exception of "The Weight." However, as Manuel's health deteriorated and Robbie Robertson's songwriting increasingly looked to the South for influence and direction, subsequent albums relied more and more on Helm's vocals, alone or in harmony with Danko. Helm was primarily a drummer and vocalist and increasingly sang lead, although, like all his bandmates, he was also a multi-instrumentalist. On occasion, Manuel switched to drums while Helm played mandolin, guitar, or bass guitar (while Danko played fiddle) on some songs. Helm played the 12-string guitar backdrop to "Daniel and the Sacred Harp". Helm remained with the Band until their farewell performance on Thanksgiving Day, November 25, 1976, which was the subject of the documentary film The Last Waltz, directed by Martin Scorsese. Helm repudiated his involvement with The Last Waltz shortly after the completion of its final scenes. In his autobiography, Helm criticized the film and Robertson, who produced it.
Question: What else did the band do?
Answer:
subsequent albums relied more and more on Helm's vocals,