Per NASA press release:

HOUSTON — NASA is inviting the public to vote for its favorite original song to wake up space shuttle Commander Mark Kelly and his five crewmates during their STS-134 mission to the International Space Station. Voting runs from Tuesday, March 29 through launch day, which currently is targeted for April 19.

Electronic voting is open to the public on NASA’s Space Rock website, which includes the songs, inspiration and biographical information about the 10 finalists: