3. Under Pressure - Queen and David Bowie
Hearing a Queen song that has a feature just feels silly most of the time. Seeing how Queen can turn almost anything into gold from a musical point, there's no reason to bring in another newcomer to take Freddie Mercury's place at all. These guys are just fine doing their own thing, but Under Pressure is everything that you'd possibly want in a collaboration.
Which is strange considering that a song like this probably couldn't be repeated again. When Queen were first tackling this song, they had no lyrics to work with until Bowie came in, thinking that he would want more of a say in what the message of the song would be. Once they got onto the studio floor though, what ended up being the final version was Freddie and David ad libbing different vocal runs and making that the centerpiece of the song, along with the chorus about coming together and looking out for each other.
That's not to say that this song didn't have its fair share of stumbling blocks, with Brian May saying that containing two personalities the size of Freddie and David was about as hectic as it sounds on paper. Still, if it means getting a song like this, it's worth any type of massive ego. Whereas every rock song has some element of danger to it, Under Pressure just feels like a message of hope that we can do better.