Francis Rossi wrote this song about the band's role in music at the time. He speaks of how many bands have tried and failed to do what Status Quo does: Blues. He is commenting on the artists trying and failing to replicate blues with the proper 'Feel,' hence the faking of the Blues.
Regarding the lyrics: "Isn't it time for a turnaround," a turnaround is used by Blues musicians to end a section of the song like a verse or chorus, something that Rossi clearly believes people "don't know."
Like many Status Quo songs, this is a Shuffle, giving the song a Bluesy feel.
Suggestion credit: Greg - Barking, Germany, for all above
"Crank That (Soulja Boy)" was the most successful digital track of 2007 in the US with 2,909,000 downloads. On January 6, 2008 it became the first song ever to sell 3 million digital copies in the States.