Robin Thicke has scored his scored his first UK No 1 single, with the aid of Pharrell Williams and a selection of nearly naked women.
The R&B crooner'sNaughty Boy's Daft Punk's Get Lucky, while Passenger's Let Her Go was down one spot at No 4.
Jessie J/Big Sean/Dizzee Rascal rounded out the top five with their collaboration Wild, which was a new entry.
Meanwhile, over in the Official UK Albums Chart, Daft Punk's Random Access Memories enjoyed its second week at No 1.
And Rod Stewart's latest album Home was another non-mover at No 2.
Laura Marling's Once I Was An Eagle was a new entry at No 3 and Passenger's All The Little Lights moved up three places to No 4.
Rudimental's Home moved up one place to No 5.
The Official UK Top 10 Singles...
1 (-) Robin Thicke - Blurred Lines (ft. T.I. & Pharrell)
2 (1) Naughty Boy - La La La (ft. Sam Smith)
3 (2) Daft Punk - Get Lucky (ft. Pharrell Williams)
4 (3) Passenger - Let Her Go
5 (-) Jessie J/Big Sean/Dizzee Rascal - Wild
6 (9) Olly Murs - Dear Darlin'
7 (4) Macklemore and Ryan Lewis - Thrift Shop (ft. Wanz)
8 (5) Rudimental - Waiting All Night (ft. Ella Eyre)
9 (6) 2 Chainz - We Own It (Fast & Furious) (ft. Wiz Khalifa)
10 (11) Demi Lovato - Heart Attack