His track 'Just Say So' - featuring, co-written and produced by Kevin Rudolf - notches up a third week at No.1.
Usher leaps from eight to two with recent UK chart-topper 'OMG', while Justin Bieber jumps from ten to three with 'Baby'.
The only new track in the top ten comes from Vanessa Amorosi, who climbs from 13 to six with 'Mr Mysterious' to rack up her sixth Aussie top ten hit.
Notable new entries come from Ke$ha, who bows at 25 with 'Your Love Is My Drug', and Florence and Dizzee, who land at 32 with their Brit Awards duet 'You've Got The Dirtee Love'.
The top ten singles in full (click where possible for our reviews):
1. (1) Brian McFadden ft. Kevin Rudolf: 'Just Say So'
2. (8) Usher ft. will.i.am: 'OMG'
3. (10) Justin Bieber ft. Ludacris: 'Baby'
4. (3) Train: 'Hey, Soul Sister'
5. (2) Lady GaGa: 'Alejandro'
6. (13) Vanessa Amorosi: 'Mr Mysterious'
7. (6) B.o.B. ft. Bruno Mars: 'Nothin' On You'
8. (10) Usher ft. will.i.am: 'OMG'
9. (5) Richard Vission & Static Revenger ft. Luciana: 'I Like That'
10. (9) Jason Derulo: 'In My Head'