Neil Patrick Harris in Dr. Horrible's Sing-Along Blog (2008)
Billy's "Everything You Ever"
Which of the following "I want" songs** from nonDisney studios gives you some or all of the best feels?
While you're in the desirable mood, go over here and vote at the I Want Disney Songs counterpart poll to this one.
*"The 'I Want' song is a popular type of song featured in musical theatre [where] the main character [sings] about how they are unsatisfied with their current life, and what they are searching for." Wikipedia