<Table> <Tr> <Td> "Rain Is a Good Thing" (2010) </Td> <Td> "Someone Else Calling You Baby" (2010) </Td> <Td> "Country Girl (Shake It for Me)" (2011) </Td> </Tr> </Table> <Tr> <Td> "Rain Is a Good Thing" (2010) </Td> <Td> "Someone Else Calling You Baby" (2010) </Td> <Td> "Country Girl (Shake It for Me)" (2011) </Td> </Tr> <P> "Someone Else Calling You Baby" is a song co-written and recorded by American country music artist Luke Bryan . It was released in August 2010 as the third and final single from his album Doin' My Thing . The song became his second number one hit on the US Billboard Hot Country Songs chart in February 2011 . </P> <P> The song is in the key of A-flat major, with Bryan's vocals ranging from C4 to F5 . In the song, the male narrator sees his lover in someone else's truck and wonders if she has left him for someone else . </P>

Who sings is someone else calling you baby