WATCH: Elvis Presley singing his final song 'Are You Lonesome Tonight' at his last ever concert

Today would've been the legendary Elvis Presley's 88th birthday.

Less than two months before he tragically passed away after suffering a heart attack at just 42 years old, the King of Rock and Roll performed his last-ever concert at Market Square Arena in Indianapolis.

Weighing an incredible 158kg, his health was sadly going downhill.

But he still went out with a bang, singing his final song 'Are You Lonesome Tonight' with his usual gusto.

Watch his final performance above.