Question: Which musician, Mikael Åkerfeldt or Dave Pirner, is best known as the lead vocalist and frontman for the alternative rock band Soul Asylum? 
Context: Jason Karaban is an American singer-songwriter and musician living in Los Angeles, California.  Karaban first began his career fronting the Philadelphia-based indie rock band "Dragstrip Courage" in 1997, and "Grand" in 2000.  He emerged as a solo artist with the release of "Doomed to Make Choices", in 2006, co-produced with Mike Napolitano (Joseph Arthur, The Twilight Singers).  Along with vocals, Karaban plays acoustic guitar, 12-string and electric guitar, bass guitar, keyboards, piano and drums.  Karaban has released four critically acclaimed albums, and has had a number of songs featured in film and television shows Over the course of his career, Karaban has collaborated with many notable musicians including Ani DiFranco, Lucy Schwartz, Sara Watkins and Sean Watkins (Nickel Creek), Garrison Starr, Taylor Momsen, Dave Pirner (Soul Asylum), Glen Phillips (Toad the Wet Sprocket) and Benmont Tench (Tom Petty and The Heartbreakers). Lars Mikael Åkerfeldt (born 17 April 1974) is a Swedish musician, prominently known as the lead vocalist, guitarist, and primary songwriter of progressive death metal band Opeth, as well as being the former vocalist of death metal supergroup Bloodbath.  He was also guitarist for the "one-off" band Steel, and is part of the collaboration Storm Corrosion with Steven Wilson. David Anthony "Dave" Pirner (born April 16, 1964) is an American songwriter, singer, and producer best known as the lead vocalist and frontman for the alternative rock band Soul Asylum. Grant Young (born January 5, 1963, in Iowa City, Iowa) was the drummer for the alternative rock band Soul Asylum from 1984–1995.  He replaced Pat Morley shortly after the release of Soul Asylum's debut album, "Say What You Will, Clarence...Karl Sold the Truck" in 1984.  Young's last appearance on a Soul Asylum record album was the breakthrough album, "Grave Dancers Union".  He was replaced in the middle of the recording sessions by Sterling Campbell, who has also since left the band and is primarily associated with David Bowie, as part of his touring bands. Sörskogen was a Swedish progressive rock project Mikael Åkerfeldt of Opeth and Dan Swanö started for fun.  Both musicians are known for their wide musical interests.  The project was supposedly named after a small community near the Stockholm suburb Huddinge where Mikael practiced with his first band Eruption in the late 1980s.  At the Opeth concert on December 18, 2008, Mikael Åkerfeldt claimed to have played soccer for the Sörskogen IF soccer club.  Sörskogen is heavily influenced by 1970s prog rock bands, Camel to name but one.  Not much is known about the project, except a few references made by Mikael in interviews. The discography of American rock band Soul Asylum consists of 11 studio albums, two live albums, five compilation albums, two extended plays (EPs), 22 singles, and 17 music videos. Formed in 1981 in Minneapolis, Minnesota using the name Loud Fast Rules, the band's original lineup consisted of vocalist Dave Pirner, guitarist Dan Murphy, bassist Karl Mueller, and drummer Pat Morley.  The band changed their name to Soul Asylum prior to the release of "Say What You Will... Everything Can Happen" in 1984.  Later that year, Morley was replaced on drums by Grant Young. Ian Mussington (born December 4, 1969) is a rock drummer, most noted as the former drummer for the Minneapolis band Soul Asylum from 1998–2001.  He joined the band shortly after Sterling Campbell left the band.  Mussington toured with the band until he left the band to move to Australia.  He also worked on Dave Pirner's 2002 solo album, "Faces & Names" and was a member of the short-lived 1990s band Stress. Hydra is the sixth studio album by Dutch symphonic metal band Within Temptation.  It was released on January 31, 2014 in Europe and on February 4, 2014 in North America.  The album contains guest appearances by singer Howard Jones (ex-Killswitch Engage), rapper Xzibit, metal vocalist Tarja Turunen (ex-Nightwish) and alternative rock singer Dave Pirner (Soul Asylum).  The first single, "Paradise (What About Us?) ", was released on September 27, 2013, and featured Turunen as guest vocalist.  The second single, "Dangerous", was released on December 20, in which Jones provided the male vocals. "Just Like Anyone" is a 1995 song by American alternative rock band Soul Asylum from their seventh album, "Let Your Dim Light Shine".  Written by lead singer Dave Pirner and produced by the band with Butch Vig, the song was released as the album's second single.  It entered the singles charts in Canada and the United Kingdom, and reached the Modern Rock Tracks chart in the United States.  The song was included on the band's 2000 greatest hits album, "", "Whole World Is Watching" is a song by Dutch symphonic metal/rock band Within Temptation from their sixth studio album, "Hydra".  It was released in Poland as the third single from the album on January 22, 2014 and was scheduled to have its main release on February 21.  The song features guest vocals from Dave Pirner of Soul Asylum, with Polish rock singer Piotr Rogucki of the band Coma providing vocals on the Polish version of "Hydra".
Answer: David Anthony "Dave" Pirner