There are several artists with the name XXL:
1) XXL is an american hip-hop magazine, founded in 1997. Since 2007, they release the annual XXL Freshman Class List, giving the spotlight to ten artists-to-watch. Along with the list, they record individual freestyles and group cyphers, which are usually scrobbled with XXL as the artist.
2) XXL is a collaboration between Xiu Xiu and Larsen. They have made three albums, ¡Ciaütistico! (2005), ¿Spicchiology? (2007), and Düde (2012).
3) XXL is also a Croatian heavy metal band. They have only one song, called Neverworld. Siniša Vuco, popular Croatian pop/rock/metal/folk star was vocalist and guitarist. His brother Hrvoje Vuco was bass guitarist and Dean Harder was drummer.
4) Band from Lithuania in about 1994-1999.
5) Melodic punk rock/skate punk band from Spain which had been active in mid-90s to 2000s. Released tape Extra Extra Large in 1994, following with albums Day by Day in 1996 and Bingo in 1999.
6) An one-off girl group that represented FYR Macedonia at Eurovision in 2000.
7) A hardcore punk band from Malmö, formed in 2022.
https://xxlhardcoremalmoe.bandcamp.com
9) 90's hardcore band from Brockton, MA. They released one album entitled "At Large" in 1997.