Incubus, September 18 at Avalon: on sale Friday at 10 a.m., call (617) 423-NEXT.

The Guess Who, September 14 at the Tweeter Center, Mansfield: on sale Saturday at 10 a.m., call (617) 931-2000.

Sigur Rós, September 21 at Berklee Performance Center: on sale August 4 at 10 a.m., call (617) 931-2000.

" OzzFest 2001 " with Black Sabbath, Marilyn Manson, Slipknot, Papa Roach, Linkin Park, Crazy Town, and Disturbed, August 7 and 8 at the Tweeter Center, Mansfield: call (617) 931-2000.

Bill Wyman and the Rhythm Kings, August 8 at Mechanics Hall, Worcester: call (508) 752-0700.

" Warped Tour " including D12, Rancid, Rollins Band, Dropkick Murphys, Alien Ant Farm, Kool Keith, Pennywise, Bouncing Souls, and H20, August 9 at Suffolk Downs: call (800) 477-6849.

" MTV’s TRL Tour " with Destiny’s Child, 3LW, Dream, Eve, and Nelly, August 10 at the Tweeter Center, Mansfield: call (617) 931-2000.

Radiohead and the Beta Band, August 14 at Suffolk Downs: call (800) 477-6849.

Cirque du Soleil presents Dralion, opening August 15 at Suffolk Downs: call (800) 678-5440.

Aretha Franklin, August 15 at Lowell Memorial Auditorium: call (617) 931-2000.

" Locobazooka 2001, " September 16 at Green Hill Park, Worcester: call (617) 423-NEXT.

Pedro the Lion, September 16 at the Middle East: call (617) 931-2000.

Powerman 5000, Saliva, Machinehead, and Stereomud, September 21 at the Palladium, Worcester: call (800) 477-6849.

Sarah Harmer, September 26 at the Paradise: call (617) 423-NEXT.

Nick Cave, October 3 at the Orpheum: call (617) 931-2000.

Proof, January 29 through February 10 at the Wilbur Theatre: call (617) 931-2787.