<Table> <Tr> <Td> </Td> <Td> "What Was I Thinkin"' (2003) </Td> <Td> "My Last Name" (2003) </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> "What Was I Thinkin"' (2003) </Td> <Td> "My Last Name" (2003) </Td> </Tr> <P> "What Was I Thinkin"' is a song co-written and recorded by American country music artist Dierks Bentley . It was released in April 2003 as the first single from his self - titled debut album . The song became his first number one hit on the U.S. Billboard Hot Country Songs charts in September 2003 . </P> <P> Bentley co-wrote "What Was I Thinkin"' with his record producer, Brett Beavers, and Deric Ruttan . The song is an up - tempo in which he recalls escaping one night with a "beauty from south Alabama," named Becky while the narrator spends the song constantly questioning "what was I thinkin"', being mesmerized by Becky into committing all manner of foolish activities . The night begins with Becky and the narrator sneaking out of her father's house but her father catches them leaving the property and shoots the tailgate of the truck on their way out with his shotgun . Shortly after they are caught in a police chase where the narrator drives his truck through a cornfield to escape, much to Becky's delight . Later into the night he encounters a large man with a "Born to Kill" tattoo whom he starts a fight with after the man tries to get between him and Becky and has to frantically run away from once he "(knocks) out his front tooth ." He returns Becky to her home "at a half - past two" (2: 30 AM) but her father is already waiting "in a lawn chair" in the driveway for the pair . The narrator shuts off his truck and waits as the father advances towards them but Becky, being the rowdy girl she is, grins and then sends them speeding off into the night once again . </P>

Who sings the song what was i thinking