Schmit sang the lead vocals on the song, with Frey and Henley singing counterpoint. Schmit also played the bass on the track, which has the distinctive bass riff believed by Schmit to have been devised by Frey. According to Henley, Frey came up with the counterpart on the song, and played the guitar solo on the song.
who sings i can't tell you why by the eagles
Schmit Schmit Schmit Frey and Henley singing counterpoint