Give some stream of consciousness and then the answer. Pearl Jam is an American rock band formed in Seattle, Washington, in 1990. Since its inception, the band's line-up has consisted of Eddie Vedder (lead vocals), Mike McCready (lead guitar), Stone Gossard (rhythm guitar) and Jeff Ament (bass). The band's fifth member is drummer Matt Cameron (also of Soundgarden), who has been with the band since 1998. Boom Gaspar (piano) has also been a session / touring member with the band since 2002. Drummers Dave Krusen, Matt Chamberlain, Dave Abbruzzese and Jack Irons are former members of the band.

Answer this question: rock band formed in seattle in 1990 jam?
The relevant information is: Pearl Jam is an American rock band formed in Seattle, Washington, in 1990.
Therefore, the answer is Pearl Jam.