It took a teen superstar to finally knock reigning champs Coldplay off the top of the Canadian album charts.

15-year-old singer Miley Cyrus's new effort "Breakout" debuted at No. 1, selling 27,000 copies, according to figures compiled by Nielsen SoundScan.

It marks her first No. 1 album here -- she got as high as No. 3 with both the "Hannah Montana 2" and "Best of Both Worlds" soundtracks.

She also grabbed the No. 1 spot south of the border, selling 371,000 copies of "Breakout" in the U.S.

Back in Canada, the "Mamma Mia" soundtrack was held steady at No. 2, while Coldplay's "Viva La Vida or Death and All His Friends" drops from No. 1 down to No. 3, after spending five consecutive weeks at No. 1.

Sugarland's "Love on the Inside" checked in at No. 4, the Lost Fingers' "Lost in the 80's" slipped two notches to No. 5, Kid Rock's "Rock N Roll Jesus" stayed at No. 6, and the "Camp Rock" soundtrack dropped three to No. 7.

Rounding out the top 10 was Katy Perry's "One of the Boys" at No. 8, Rihanna's "Good Girl Gone Bad" at No. 9, and Lil Wayne's "Tha Carter III" at No. 10.

Other notable first week entries included Nine Inch Nails' "The Slip" at No. 12, and Buddy Guy's "Skin Deep" at No. 42.

In the U.S., Miley entered in the top spot, followed by Sugarland in second, the "Mamma Mia" soundtrack in third, Kid Rock in fourth, and Lil Wayne in fifth.