Pokémon isn't a valid artist tag.
You may find the correct artists and track listing on this webpage: http://vgmdb.net/, if it is related to the videogames, or either http://www.pocketmonsters.net/cddvd.php?action=cd if it is related to the animation.
Please do yourself (and last.fm) a favor and fix your tags.
There are many bands under the name of Valhalla, 10 of them are metal. 1) The best known Valhalla hails from Petrozavodsk, Rusland and has released one album under the name of "Hail To The Fallen Majesty" in 2003. 2) There is another Valhalla originating from Bedfordshire in England from 1979 playing progressive metal. They had two national single releases on the NEAT records label, "Coming Home" and the double A sides of "Jack" and "Still in Love with You" together with tracks on the compilation album sponsored by the popular music paper SOUNDS.
Anonymous 4 is a female a cappella quartet, based in New York City. Their main performance genre is medieval music, although they have also premiered works by living composers such as John Tavener and Steve Reich. Anonymous 4 has performed in cities throughout North America, and have been regulars at major international festivals. They decided to make the 2003-2004 season their last as a full-time recording and touring ensemble, although special projects (such as their Gloryland CD and their "Long Time Traveling" Tour) continue to bring them together on occasion.
goreshit is a one-man electronic music project from United Kingdom started in 2006. goreshit was primarily a lolicore artist (mostly breakcore and speedcore influenced), but later his style expanded to other genres such as idm, dark hardcore and dancecore. His tracks have appeared on several compilations and he has put out a number of full length albums and splits for free (mostly self-released but occasionally on netlabels such as Dance Corps.
Scott Matthew is a vocalist and lyricist born in Queensland, Australia, who currently resides in New York City. The popularity of Shortbus by director John Cameron Mitchell has brought Matthew to the attention of a larger audience as Matthew's music is featured extensively in the movie soundtrack. He also acted in the movie, playing his songs for the eclectic Shortbus club's patrons. He is perhaps most known for his vocal performances for Yoko Kanno for her Cowboy Bebop: Knockin' on Heaven's Door and Ghost in the Shell: Stand Alone Complex soundtracks.
There are at least five bands who have recorded under the name Colors.
1) Now defunct Denver, Colorado based dissonant hardcore group that formed in June of 2008. In August of 2010, they recorded nine of the songs that they had written in the two years prior, eight of which were released as 'Palindromes'. After a lineup change that October, they briefly adopted a new moniker and began working on new material before permanently disbanding in March of 2011. On 3 April 2011 they performed for the last time, with their original lineup and name intact.
Born July 28, 1966 Suga Shikao [スガシカオ] is a former office drone (working in the advertising industry) turned producer, vocalist and lyricist. He lists his influences as mostly soul, funk, and R&B artists like Sly & the Family Stone and Prince, and of late has been influenced by Damien Rice to take an interest in UK rock.
Kym Mazelle (born Kimberley Grigsby in 1960, in Gary, Indiana, U.S.) is an American soul music singer. She was brought up and lived on the same street as the Jackson family and knew Michael Jackson's mother and uncle. Early in her career, in the late 1980s and early 1990s, she enjoyed major success in the European house music scene, and performed as a member of Soul II Soul. However she is probably best known as the singer of the cover version of the song "Young Hearts Run Free", in the 1996 Baz Luhrmann film, William Shakespeare's Romeo + Juliet.
Steve Conte is the guitarist & lead singer in the bands The Contes and Crown Jewels, and is the current lead guitarist of The New York Dolls. Conte first became known to the music industry through his band Company Of Wolves (Mercury Records) in the early 1990s. Steve has done studio and/or live work with artists such as Peter Wolf, Willy DeVille, Maceo Parker, Billy Squier, Suzi Quatro, Jill Jones, Paul Simon, Simon & Garfunkel, Phoebe Snow, David Johansen & the Harry Smiths, Chuck Berry, Willie Nile and many others.