The Fleet Foxes
The musical guest on Saturday Night Live August 11 was 'Beck'.
On January 12th, 2008, the musical guest on Saturday Night Live was OneRepublic.
Taylor Swift was Saturday Night Live's musical guest on January 10, 2009, and she was both musical guest and host on November 7, 2009.
www.saturdaynightlive.com
Usually, the August episodes are repeats. Since this answer changes from week to week, the best resource is the Official Saturday Night Live website, which will show you the host and musical guest on the front page.
Chris Brown appeared on Saturday Night Live as a musical guest on February 12, 2011 where he performed "Yeah 3x" and "No BS." The best resource for future hosts and musical guests is the Official Saturday Night Live website, which will show you the host and musical guest on the front page.
Jason Mraz.
Kanye West
Dave Grohl is the most frequent musical guest, performing on 11 shows since 1992.
I don't know man
The bands name is Duffy.
Adele --chasing pavement