Answer the following question: Facts:   - website: -lsb- http://www.furthur.net/ www.furthur.net -rsb-    - years active: 2009 -- 2014    - landscape: yes    - past members: bob russo jay lane sunshine becker zoe ellis jeff pehrson weir phil lesh john kadlecik jeff chimenti joe    - caption: furthur , 2010 performing at red rocks amphitheatre on september 25    - origin: san francisco , california    - genre: rock      - name: furthur    - image size: 250    - background: group_or_band    - image: furthur_20100925-01_redrocks . jpg    - associated acts: grateful lesh and friends , dark star orchestra , benevento/russo duo dead , joe russo 's almost dead , the fall risk , , primus the dead , ratdog , phil   Based on these bullet points, write a short biography describing the life of furthur -lrb- band -rrb- .
Answer:
furthur was a rock band founded in 2009 by former grateful dead members bob weir and phil lesh .the original lineup also included john kadlecik of the dark star orchestra on lead guitar , jeff chimenti of ratdog on keyboards , jay lane of ratdog on percussion , and joe russo of the benevento/russo duo on drums .named after the famous touring bus used by ken kesey and the merry pranksters in the 1960s , furthur was an improvisational jam band that performed music primarily from the extensive grateful dead songbook , as well as their own original music and that of several other well-known artists .in addition to the original members -lrb- with the exception of jay lane , who left the band in march 2010 to rejoin his previous band , primus -rrb- , the band 's lineup included backup vocalists sunshine becker of the a cappella ensemble sovosó and jeff pehrson of the folk rock bands box set and the fall risk .