<Table> <Tr> <Td> "Honkytonk U" (2005) </Td> <Td> "As Good as I Once Was" (2005) </Td> <Td> "Big Blue Note" (2005) </Td> </Tr> </Table> <Tr> <Td> "Honkytonk U" (2005) </Td> <Td> "As Good as I Once Was" (2005) </Td> <Td> "Big Blue Note" (2005) </Td> </Tr> <P> "As Good as I Once Was" is a song co-written and recorded by American country music singer Toby Keith that reached the top of the Billboard Hot Country Songs chart . This song and his 2003 single "Beer for My Horses" are both his longest - running Number One hits, each having spent six weeks at Number One . "As Good As I Once Was" was released in May 2005 as the second single from Keith's album Honkytonk University . Keith wrote the song with Scotty Emerick . </P> <P> The song was named BMI's song of the Year for 2006 . It has since become one of Keith's signature songs, as well as one of his most successful . </P>

Who sings i'm not as good as i once was