"Don't Stop Believing" by the cast of Glee.
Alexander Courage was the theme song composer for Star Trek : The Original Series .
It is a modified version of "Star trek the motion picture" theme.
If I remember correctly then I believe the song that was played in the trailer is: "When I Look At You" by Miley Cyrus
The song was composed by the Star Trek orchestra, as are most songs used in Star Trek. If you are looking to download it then search for Star Trek Enterprise Series Soundtrack in any of the major search engines and you should be able to find something.
Past Prologue
Linkin Park - The CatalystThis is the song that you hear on the TV trailer's.
Loulie Jean Norman sang the wordless vocal which accompanies the theme of the original Star Trek.
The Bad Touch
The name of the classical song that is played in the Evil Within video game trailer is not listed.
The song is called When I Look @ You , it is a really beautiful song!
The song is called "Into Dust" by Mazzy Star.
It is the theme song for the trailer park boys