Cradlesong is the second solo studio album by the Matchbox Twenty lead-singer Rob Thomas, released on June 30, 2009 by Atlantic Records. The album's first single "Her Diamonds" was a success around the world, while reaching number three in Australia and topping the Billboard Hot Adult Top 40 Tracks chart, meanwhile other singles "Someday" and "Mockingbird" attained success on the Adult Contemporary charts. The album received mostly positive reviews, with the single "Her Diamonds", a song written about his wife and her illness, receiving praise by many reviewers. The album takes a pop rock feel with a variety of sounds mixed by longtime producer Matt Serletic who is praised for smooth production of the album. It debuted on the US Billboard 200 at number #3 selling 122,000 copies, while reaching top-ten positions in Canada and Australia.