Neon Trees, Coldplay part of this week's Best Bets

In the county

Middle Sister, Chris Swam and Greg Gottlieb

Synopsis: Acoustic pop group Middle Sister opens the concert with Child of Mischief, featuring Swam and Gottlieb, closing the show.

When: 6:45 p.m. Sunday

Where: Westminster City Park, 11 Longwell Ave., Westminster

Admission: Free, but a donation of a personal care item will be collected to benefit Human Services Programs of Carroll County.

Information: http://www.westminstermd.gov

In the region

Def Leppard with Poison

Synopsis: It's going to be a metal Tuesday in Columbia. Def Leppard's sold more than 100 million albums and Poison, fronted by Bret Michaels, is best known for its 80s No. 1 single "Every Rose Has Its Thorn."

When: 5:30 p.m. Tuesday

Where: Merriweather Post Pavilion, 10475 Little Patuxent Parkway, Columbia

Admission: $45-$125

Information: 410-715-5550 or http://www.merriweathermusic.com

Coldplay's Mylo Xyloto Tour

Synopsis: The British alt-rockers make a return to the area with two shows. Robyn and Wolf Gang serve as the opening acts.

When: 7 p.m. Sunday and Monday

Where: Verizon Center, 601 F. St., Washington, D.C.

Admission: $29.50-$107

Information: 202-628-3200 or http://www.verizoncenter.com

Neon Trees in concert

Synopsis: The alt-rockers from Utah have their first legit crossover hit with "Everybody Talks," which has cracked the top 25 of Billboard's Hot 100 singles chart, which tracks hits from all genres.

When: 7 p.m. Wednesday

Where: 9:30 Club, 815 V St., Washington, D.C.

Admission: $20

Information: 202-265-0930 or http://www.930.com.