NASCAR superstar Dale Earnhardt Jr. was at XM studios in Washington, DC on Wednesday to host a concert with Vancouver singer/songwriter Matthew Good. Matthew Good is one of Dale Jr's favorite artists.

The concert will air later on XM. Dates and deets will be announced soon.

Dale also was making the rounds at XM. First he dropped by XM Sports Nation (ch 144) studio to do a quick interview with the beloved Claire B. Lang, host of "Dialed In." Dale also met up with David Barker, who was lucky enough to buy an XM radio at Circuit City and won an all-expense paid trip to The Eck and the opportunity to meet Dale Earnhardt Jr.

Pictured above is a photo of Dale Jr with Matthew Good (note that he only hosted the concert, sadly, he didn't perform). After the jump, check out photos of Dale in the XMSN studio and with a very happy David Barker.