Claiming the number one position on the singles chart for the ninth week in a row, Crazy by Gnarls Barkley saw its sales slip just 6% last week to 37,682, beating off a challenge from new runner-up Sandi Thom's I Wish I Was A Punk Rocker by a margin of 15.2%, writes Alan Jones.

Crazy now has one of the longest reigns at number one in chart history, being inferior to only six of the previous 1,032 chart-toppers, namely I ...