Conversation so far:
What is perfect symmetry?
band.
did keane play with the band?
Keane's official site in high definition.
what happened in 2008?
The album was released on 13, October 2008, and reached number one on the UK Albums Chart on 19 October.
how many records did it sell?
October.
It also reached number 7 on the Billboard 200 chart.
In December 2008, it was voted Best Album of the Year by the readers.
did they tour?
they started their third world tour, the Perfect Symmetry World Tour.

Question: when did they tour?
Self-contained rewrite: when did Keane and Perfect Symmetry tour?