Dates run July 13-Sept. 3.

Avril Lavigne is coming to an amphitheatre near you this summer. Her third headlining tour, which will feature special guests such as Gavin DeGraw and Butch Walker, begins July 13 at the John Labbatt Centre in London, Ontario.

The eight-week trek ends Sept. 3 at the Bell Centre in Montreal. Major stops include Aug. 11-12 at L.A.'s Greek Theatre and Aug. 16 at Houston's Cynthia Woods Mitchell Pavilion. More dates will be announced soon.

"Fall to Pieces," the fourth single from Lavigne's RCA album "Under My Skin," hits top -40 radio April 18.

She'll be performing Aug. 12 on "The Tonight Show" and will be play Aug. 26 as part of the "Good Morning America" summer concert series.

Lavigne is booked by Larry Webman at Little Big Man.