Hair bands and spandex at the M3 Rock Festival

Crowd on the lawn Saturday afternoon. (WTOP/Reada Kessler)

WTOP/Reada Kessler

Masayuki Suzuki Masayuki Suzuki of the Japanese metal band Loudness performs at the M3 Rock Festival at Merriweather Post Pavilion on Saturday, May 4, 2013, in Columbia, Md. (AP/Owen Sweeney/Invision/AP)

AP/Owen Sweeney/Invision/AP

Masayoshi Yamashita, Akira Takasaki, Masayuki Suzuki Japanese metal band Loudness performs at the M3 Rock Festival at Merriweather Post Pavilion on Saturday, May 4, 2013, in Columbia, Md. (AP/Owen Sweeney/Invision/AP)

AP/Owen Sweeney/Invision/AP

Doug Pinnick, Jerry Gaskill, Ty Tabor Rock band King's X performs at the M3 Rock Festival at Merriweather Post Pavilion on Saturday, May 4, 2013, in Columbia, Md. (AP/Owen Sweeney/Invision/AP)

AP/Owen Sweeney/Invision/AP

Lexxi Foxx Lexxi Foxx of the glam metal band Steel Panther performs at the M3 Rock Festival at Merriweather Post Pavilion on Saturday, May 4, 2013, in Columbia, Md. (AP/Owen Sweeney/Invision/AP)

AP/Owen Sweeney/Invision/AP

Michael Starr Michael Starr of the glam metal band Steel Panther performs at the M3 Rock Festival at Merriweather Post Pavilion on Saturday, May 4, 2013, in Columbia, Md. (AP/Owen Sweeney/Invision)

AP/Owen Sweeney/Invision

Lexxi Foxx, Satchel Glam metal band Steel Panther performs at the M3 Rock Festival at Merriweather Post Pavilion on Saturday, May 4, 2013, in Columbia, Md. (AP/Owen Sweeney/Invision/AP)

AP/Owen Sweeney/Invision/AP

Dee Snider Dee Snider of the glam metal band Twisted Sister performs at the M3 Rock Festival at Merriweather Post Pavilion on Saturday, May 4, 2013, in Columbia, Md. (AP/Owen Sweeney/Invision)

AP/Owen Sweeney/Invision

Michael Starr, Lexxi Foxx, Satchel Glam metal band Steel Panther performs at the M3 Rock Festival at Merriweather Post Pavilion on Saturday, May 4, 2013, in Columbia, Md. (AP/Owen Sweeney/Invision)

AP/Owen Sweeney/Invision

Mark Mendoza Mark Mendoza of the glam metal band Twisted Sister performs at the M3 Rock Festival at Merriweather Post Pavilion on Saturday, May 4, 2013, in Columbia, Md. (AP/Owen Sweeney/Invision)

AP/Owen Sweeney/Invision

Fan getting into the spirit of M3. (WTOP/Reada Kessler)

WTOP/Reada Kessler

M3 Rock Festival Bret Michaels of the rock band Poison performs solo during the M3 Rock Festival at Merriweather Post Pavilion on Saturday, May 4, 2013, in Columbia, Md. (AP Images/Owen Sweeney/Invision)

AP Images/Owen Sweeney/Invision