Ray Lamontagne, David Gray map summer tour

Singer/songwriters Ray Lamontagne and David Gray have lined up nearly a month's worth of summer co-headlining dates focusing on the amphitheater circuit.

The outing gets underway Aug. 15 in Columbia, MD, stretching through a Sept. 10 show in San Francisco. Highlights of the 16-city trek include stops in Chicago (8/25) and Los Angeles (9/8). Dates are at right.

On the road, Lamontagne continues to support 2008's "Gossip in the Grain," his third studio album and the follow-up to 2006's "Till the Sun Turns Black." The record entered The Billboard 200 chart at No. 3, marking Lamontagne's highest-charting moment to date.

While Lamontagne's first two albums--2006's "Till the Sun Turns Black" and 2004's "Trouble"--were mostly solo efforts, the performer incorporated members of his touring band into the recording of "Gossip," which also features singer/songwriter Leona Naess on a pair of tracks. "It was time to open up a little bit more, not be quite so reserved in my choice of songs that I wanted to record," the singer explained in his bio.

Gray's most recent studio album, "Draw the Line," surfaced in September. The self-produced set, which was recorded in London, features duets with Annie Lennox and Brooklyn-based singer/songwriter Jolie Holland.

"She was fantastic," Gray told SoundSpike recently of Lennox's participation on the record. "She's so full of energy and so full of creative ideas. She was so cooperative and positive. It was just a complete pleasure. She wanted that track to be absolutely as it should be, as good as it could be. She believed so much in that song. She wanted to work until it was right. That's exactly what I do, so we go on like a house on fire. The whole process was great. It was fun, and I think that comes across on the album."