Question: Who released his debut solo album after the group disbanded, Biff Byford or Shane Filan?

full_context: Document 1: About You (Shane Filan song): "About You" is a single by Irish singer-songwriter Shane Filan, released as the second single from his debut studio album "You and Me" (2013). The single was released on 3 November 2013 in Ireland and 25 August 2013 worldwide. The song was written by Shane Filan, Steve Mac and Wayne Hector
Document 2: Baby Let's Dance: "Baby Let's Dance" (stylized as Baby, Let's Dance) is a song by Irish singer-songwriter Shane Filan, released as the promotional single from his debut studio album "You and Me" (2013) on 4 October 2013. The song was written by Shane Filan, Jon Green and Phil Thornalley.
Document 3: Love Always (Shane Filan album): Love Always is the third solo album by Irish singer-songwriter Shane Filan, as a follow-up to "Right Here" (2015), through Ocean Wave Records. It was released worldwide on 25 August 2017, while in Asia on 15 September. The album features Filan's favorite all-time love ballads, such as the Bangles' "Eternal Flame", Bob Dylan's "Make You Feel My Love" and Bryan Adams' "Heaven", along with some fans suggestions. He also wrote three original songs, in collaboration with Paul Barry and Patrick Mascall, who were previously worked together on his debut album "You and Me".
Document 4: Westlife: Westlife were an Irish boy band, formed in Dublin in July 1998 and disbanded in June 2012. Originally signed by Simon Cowell and managed by Louis Walsh, the group's second and final line-up consisted of Nicky Byrne, Kian Egan, Mark Feehily, and Shane Filan. Brian McFadden was a member from July 1998 until his departure in March 2004.
Document 5: Bruce Dickinson: Paul Bruce Dickinson (born 7 August 1958), known professionally as Bruce Dickinson, is an English singer, songwriter, musician, airline pilot, entrepreneur, author and broadcaster. He is the lead singer of the heavy metal band Iron Maiden and is renowned for his wide-ranging operatic vocal style and energetic stage presence.
Document 6: You and Me (Shane Filan album): You and Me is the debut solo album by Irish singer-songwriter Shane Filan. It was released via Capitol Records on 1 November 2013 in Ireland. The album was preceded by the release of his debut single "Everything to Me" which peaked at number 14 on the UK Singles Chart on the week of release. The album's second single, "About You", co-written by long-term collaborators Steve Mac and Wayne Hector, was released on 1 November 2013. "Knee Deep in My Heart" was released as the third and final single on 29 November 2013. The song "Baby Let's Dance" was released as promotional single on 4 October 2013. The album reached #6 in the UK.
Document 7: Markus Feehily: Markus Michael Patrick Feehily (formerly known as Mark Feehily, born 28 May 1980) is an Irish singer and songwriter. He was one of the lead singers of the boy band Westlife from 1998 to 2012.
Document 8: Paul Di'Anno: Paul Andrews (born 17 May 1958), better known by his stage name Paul Di'Anno, is a British singer best known as the first vocalist to record with heavy metal band Iron Maiden, from 1978 to 1981.
Document 9: Saxon (band): Saxon are an English heavy metal band formed in 1977, in South Yorkshire. As one of the leaders of the new wave of British heavy metal, they had eight UK Top 40 albums in the 1980s including four UK Top 10 albums and two Top 5 albums. The band also had numerous singles in the UK Singles Chart and chart success all over Europe and Japan, as well as success in the US. During the 1980s Saxon established themselves as one of Europe's biggest metal acts. The band tours regularly and have sold more than 15 million albums worldwide. They are considered one of the classic metal acts and have influenced many bands such as Metallica, Mötley Crüe, Pantera, Sodom.
Document 10: Stephen Gately: Stephen Patrick David Gately (17 March 197610 October 2009) was an Irish pop singer-songwriter, actor, children's writer and dancer, who, with Ronan Keating, was one of two lead singers of the pop group Boyzone. Gately and Keating originally served as co-frontmen, but Keating gradually became more synonymous with the group as time went on. All of Boyzone's studio albums hit number one in the United Kingdom, their third being their most successful internationally. With Boyzone, Gately had a record-breaking sixteen consecutive singles enter the top five of the UK Singles Chart. He performed for millions of fans globally. He released a solo album in 2000, after the group's initial break-up, which charted in the UK top ten and yielded three UK hit singles, including the top three hit "New Beginning". Gately went on to appear variously in stage productions and on television programmes as well as contributing songs to various projects. In 2008, he rejoined his colleagues as Boyzone reformed for a series of concerts and recordings.
Document 11: Biff Byford: Peter Rodney "Biff" Byford (born 15 January 1951) is an English singer best known as the lead singer of the heavy metal band Saxon.
Document 12: Shane Filan: Shane Steven Filan (born 5 July 1979) is an Irish singer and songwriter. He was one of the lead singers and frontman of boy band Westlife until the group disbanded in 2012. After the group disbanded, Filan released his debut solo album, "You and Me", in 2013.
Document 13: Bon Scott: Ronald Belford "Bon" Scott (9 July 1946 – 19 February 1980) was an Australian singer and songwriter, best known for being the lead vocalist and lyricist of the Australian hard rock band AC/DC from 1974 until his death in 1980.
Document 14: Ian Gillan: Ian Gillan (born 19 August 1945) is an English singer and songwriter. He originally found commercial success as the lead singer and lyricist for Deep Purple.
Document 15: Rob Halford: Robert John Arthur Halford (born 25 August 1951) is an English singer and songwriter, who is best known as the lead vocalist for the Grammy Award-winning heavy metal band Judas Priest and famed for his powerful wide-ranging voice. AllMusic says of Halford: "There have been few vocalists in the history of heavy metal whose singing style has been as influential and instantly recognizable", possessing a voice which is "able to effortlessly alternate between a throaty growl and an ear-splitting falsetto". Halford was voted number 33 in the greatest voices in rock by Planet Rock listeners in 2009. In addition to his work with Judas Priest, he has been involved with several side projects, including Fight, 2wo and Halford. In 1998, he came out as gay in an interview with MTV News.
ground_truth: Shane Steven Filan