Question: Hollywood Rose was an American hard rock group co-formed by an American musician that has been the lead singer of what band since 2016?

<P0-S0> W. Axl Rose (born William Bruce Rose Jr.; raised as William Bruce Bailey; February 6, 1962) is an American singer, songwriter, record producer and musician. <P0-S1>  He is the lead vocalist of the hard rock band Guns N' Roses, and has also been the band's sole constant member since its inception in 1985. <P0-S2>  In addition to Guns N' Roses, he has been the lead singer of AC/DC since 2016. <P0-S3>  Due to his powerful and wide vocal range and energetic live performances, Rose has been named one of the greatest singers of all time by various media outlets, including "Rolling Stone" and "NME". <SEP> <P1-S0> Hollywood Rose was an American hard rock group formed in 1983 and is best known as the precursor group for what would eventually become Guns N' Roses. <P1-S1>  The group was founded by Axl Rose, Izzy Stradlin and Chris Weber while they were aided during live shows by Rick Mars, Johnny Kreis, Steve Darrow and Andre Troxx. <P1-S2>  Rose, Stradlin and Weber, along with Kreis, recorded a five-song demo in 1984. <P1-S3>  However, after a number of lineup changes, which includes Weber and Kreis being replaced by Slash and Steven Adler (both then of Road Crew) respectively as well the departure of Stradlin, the group disbanded the same year. <SEP> <P2-S0> Guns N' Roses is an American hard rock band formed in Los Angeles, California in 1985 by members of Hollywood Rose and L.A. Guns. <P2-S1>  The band has released six studio albums, two live albums, two compilation albums, two extended plays, seven video albums, eighteen singles, twenty four music videos and one video single. <P2-S2>  Guns N' Roses signed a deal with Geffen Records in 1986, after the independently released EP "Live ?! <P2-S3> *@ Like a Suicide" a year before. <P2-S4>  Its debut studio album "Appetite for Destruction" was released in 1987, reached the top of the "Billboard" 200 and sold 18 million units in the United States and approximately 33 million units worldwide. <SEP> <P3-S0> L.A. Guns are an American hard rock band from Los Angeles, California, formed in 1983. <P3-S1>  As of 2017, the lineup consists of Phil Lewis (lead vocals, rhythm guitar), Tracii Guns (guitar), Michael Grant (guitar), Johnny Martin (bass, backing vocals) and Shane Fitzgibbon (drums). <P3-S2>  The first incarnation of the group was formed by Tracii Guns in 1983 and merged with fellow Los Angeles group Hollywood Rose to form Guns N' Roses in 1984. <P3-S3>  In 1985, the group was reformed by Guns and singer Paul Black adding Mick Cripps and Nickey Alexander. <P3-S4>  Black would soon be replaced by former Girl singer Phil Lewis while former Faster Pussycat bassist Kelly Nickels was added to the group. <P3-S5>  Later, Alexander would be replaced by former W.A.S.P. drummer Steve Riley with this being known as the "classic lineup" of L.A. Guns. <P3-S6>  They achieved moderate chart success in the late 1980s and early 1990s. <P3-S7>  However, the group went through numerous lineup changes (with Riley being the most consistent member) and failed to regain mainstream attention.