Lily Allen reached number two with her debut album in 2006
Lily Allen's new album has shot straight to the top of the chart, while her single also remains at number one.
It's Not Me, It's You is the 23-year-old pop star's second album, and her first number one, after her 2006 debut Alright, Still made number two.
The album's first single, The Fear, has topped the chart for a third week.
Prodigy's comeback single Omen is a new entry at number eight, while Morrissey has a new entry at number 21 with I'm Throwing My Arms Around Paris.
In the album chart, Kings of Leon remain at number two with Only By The Night, while Valentine's Day sales helped propel UB40 and the late Luther Vandross up the charts.
UB40 compilation Love Songs rose to number three, the best performance by the Birmingham reggae veterans since 1993 album Promises and Lies.
A similarly-titled collection of Vandross songs, Lovesongs, rose to number four.
Bette Midler's The Best Bette rose to number six, while US rock band The Fray saw their self-titled second album enter the chart at number eight.