Music
The American singer, who was briefly knocked off the number one spot by Wes Carr two weeks ago, is enjoying a second run at the chart summit with 'Poker Face'.
Carr's 'You' holds on to second, while T.I. and Rihanna spend another week at number three with 'Live Your Life'.
Elsewhere, Katy Perry returns to the top ten with 'Hot N Cold' climbing four places to tenth.
The top ten Australian singles in full (click where possible for our reviews):
1. (1) Lady GaGa: 'Poker Face'
2. (2) Wes Carr: 'You'
3. (3) T.I. Feat Rihanna: 'Live Your Life'
4. (4) Kings Of Leon: 'Use Somebody'
5. (7) The Ian Carey Project: 'Get Shaky'
6. (5) Kings Of Leon: 'Sex On Fire'
7. (6) Britney Spears: 'Circus'
8. (8) Beyoncé: 'Single Ladies (Put A Ring On It)'
9. (9) Pink: 'Sober'
10. (14) Katy Perry: 'Hot N Cold'
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