<P> In "Sing It Louder!! - a-Rooney", Liv and Ruby perform "One Second Chance" on the set of "Sing It Louder!!" The song was recorded by Dove Cameron and Lauren Lindsey Donzis and was released as a promotional single by Walt Disney Records on November 4, 2016 . </P> <P> In "Falcon - a-Rooney", "The Power of Two" is performed again by Liv and Ruby for "Sing It Louder!!" Like the previous song in season four, Dove Cameron and Lauren Lindsey Donzis recorded a full song, released on January 20, 2017 . </P> <P> In "Sing It Live!!! - a-Rooney, Liv sings "My Destiny" for the special episode of "Sing It Louder!!" Again, a full version of the song was recorded by Dove Cameron and released as a promotional single on March 3, 2017 . </P> <Table> List of songs in Liv and Maddie <Tr> <Th> Title </Th> <Th> Performed by </Th> <Th> First episode </Th> </Tr> <Tr> <Td> "Better in Stereo" </Td> <Td> Dove Cameron </Td> <Td> "Twin - a-Rooney" </Td> </Tr> <Tr> <Td> "On Top of the World" </Td> <Td> Dove Cameron </Td> <Td> "Twin - a-Rooney" </Td> </Tr> <Tr> <Td> "Up on the Housetop" </Td> <Td> Dove Cameron and Ella Anderson </Td> <Td> "Fa - La - La - a-Rooney" </Td> </Tr> <Tr> <Td> "Let It Snow, Let It Snow, Let It Snow" </Td> <Td> Dove Cameron </Td> <Td> "Fa - La - La - a-Rooney" </Td> </Tr> <Tr> <Td> "FroyoYOLO" </Td> <Td> Dove Cameron </Td> <Td> "Song - a-Rooney" </Td> </Tr> <Tr> <Td> "Count Me In" </Td> <Td> Dove Cameron </Td> <Td> "Song - a-Rooney" </Td> </Tr> <Tr> <Td> "You, Me and the Beat" </Td> <Td> Dove Cameron </Td> <Td> "New Year's Eve - a-Rooney" </Td> </Tr> <Tr> <Td> "What a Girl Is" </Td> <Td> Dove Cameron </Td> <Td> "Rate - a-Rooney" </Td> </Tr> <Tr> <Td> "True Love" </Td> <Td> Dove Cameron </Td> <Td> "Prom - a-Rooney" </Td> </Tr> <Tr> <Td> "Say Hey" </Td> <Td> Dove Cameron </Td> <Td> "Band - a-Rooney" </Td> </Tr> <Tr> <Td> "As Long as I Have You" </Td> <Td> Dove Cameron </Td> <Td> "Video - a-Rooney" </Td> </Tr> <Tr> <Td> "Honey, I'm Good" </Td> <Td> Andy Grammer </Td> <Td> "SPARF - a-Rooney" </Td> </Tr> <Tr> <Td> "Key of Life" </Td> <Td> Dove Cameron </Td> <Td> "Dream - a-Rooney" </Td> </Tr> <Tr> <Td> "One Second Chance" </Td> <Td> Dove Cameron and Lauren Lindsey Donzis </Td> <Td> "Sing It Louder!! - a-Rooney" </Td> </Tr> <Tr> <Td> "Power of Two" </Td> <Td> Dove Cameron and Lauren Lindsey Donzis </Td> <Td> "Falcon - a-Rooney" </Td> </Tr> <Tr> <Td> "My Destiny" </Td> <Td> Dove Cameron </Td> <Td> "Sing It Live!!! - a-Rooney" </Td> </Tr> </Table>

Who plays the double in liv and maddie