Scouting For Girls score Easter Number One Get Tickets
Trio knock Lady GaGa from the summit with their first ever chart topper
The trio shot straight to the top with 'This Ain't A Love Song', which is lifted from their forthcoming second album 'Everybody Wants To Be On TV'.
Lady Gaga had to settle for second best at Number Two with 'Telephone'.
Elsewhere Plan B scored his highest chart release with his new single 'She Said' which went straight in at Number Three, according to the Official Charts Company.
Meanwhile in the UK album chart, Boyzone remain at Number One for a second consecutive week with 'Brother' ahead of Lady Gaga's 'The Fame'.
Elsewhere, Free & Bad Company's 'The Very Best Of' is a new entry at 10, Madonna's 'Sticky & Sweet Tour' live album is at 17 and Scouting for Girls' self-titled 2007 debut has gone back into the Top 40 at 35.
The UK Top 10 singles are:
1. Scouting For Girls - 'This Ain't A Love Song'
2. Lady Gaga (ft Beyonce) - 'Telephone'
3. Plan B - 'She Said'
4. Delirious? - 'History Makers'
5. Tinie Tempah - 'Pass Out'
6. Rihanna - 'Rude Boy'
7. Justin Bieber (feat. Ludacris) - 'Baby'
8. Usher - 'OMG' (feat Will.i.am)
9. INNA - 'Hot'
10. Cheryl Cole - 'Parachute'
The UK Top 10 albums are:
1. Boyzone - 'Brother'
2. Lady Gaga - 'The Fame'
3. Justin Bieber - 'My World'
4. Glee Cast - 'Glee The Music: Season One Volume Two'
5. Florence and The Machine - 'Lungs'
6. Paolo Nutini - 'Sunny Side Up'
7. Glee Cast - 'Glee The Music: Season One Volume One'
8. Alicia Keys - 'The Element Of Freedom'
9. Mumford & Sons - 'Sigh No More
10. Free & Bad Company - 'The Very Best Of'