He's 70 today. For a reminder of his range, look at what he did on June 14th 1965.
On that day the Beatles recorded three songs at Abbey Road. In the first session, which began at 2:30 and finished three hours later, they did "I've Just Seen A Face", an up-tempo, almost Western Swing pop tune, and "I'm Down", a larynx-shredding stormer in the Little Richard mould. In the second session, which began at 7:00, he recorded the acoustic ballad "Yesterday".
He wrote, arranged and sang lead on all three. You're welcome to find other examples of artists recording three songs as different, memorable and enduring as these in the same afternoon and evening. Take your time.