Xanadu

Xanadu was a place where nobody dared to go, the love that we came to know, they call it Xanadu.
Xanadu was also a song from Earth's 20th century made popular by noted porn star, Olivia d'Abo.
Jonathan Archer sang Xanadu during talent night aboard Enterprise in 2152, in order to keep the crew awake during yet another particularly agonizing leg of their pointless mission. 
Commander Trip Tucker disputed Archer's performance as being, "kind of pitchy." Ensign Mayweather then pitched in via communicator, stating "that was bad, dawg!" Hoshi Sato, however, loved Archer for who he was. Malcolm Reed, on the other hand, felt the performance was "absolutely horrendous... I didn't know whether to cover my ears or shoot myself with a phase pistol. But I chose the former because I wanted to be around to tell you how absolutely dreadful that was. And you have bad hair." (ENT: "Desert Crossing")