Lily Allen has scored her first-ever number one album with It's Not Me, It's You, to top both the single and album charts.
Her second album went one better than 2006 debut Alright, Still to hit top spot, while single The Fear held is at number one for a third week.
The 23-year-old could be set for further success if as expected It's Not Me, It's You tops the US charts next week.
Elsewhere in the singles chart Omen by the Prodigy debuted at eight, while Valentine's Day sales helped Love Songs by UB40 and Lovesongs by Luther Vandross into the top five.
Top ten UK singles (last week's position)
1 The Fear Lily Allen (1)
2 Just Dance Lady GaGa (2)
3 Breathe Slow Alesha Dixon (5)
4 Crack Me a Bottle Eminem ft Dr Dre and 50 Cent (4)
5 Take Me Back Tinchy Stryder ft Taio Cruz (3)
6 Broken Strings James Morrison and Nelly Furtado (7)
7 Single Ladies Beyonce (9)
8 Omen The Prodigy (new entry)
9 Day 'n' Nite Kid Cudl v Crookers
10 T-Shirt Shontelle (13)
Top five UK albums
1 It's Not Me It's You Lily Allen (new entry)
2 Only By the Night Kings Of Leon (2)
3 Love Songs UB40 (19)
4 Lovesongs Luther Vandross (27)
5 Songs For You Truths For Me James Morrison (7)