A pair of Elton John's iconic heart-shaped glasses have been stolen from a museum.

The glasses were taken from the Rock 'n' Soul Museum in Memphis, even though the case that contained them was locked.

As of now, nobody knows how the thief managed to break into the display and steal the glasses.

"Museum honchos say someone had to use tools in order to jimmy the lock,"

According to reports, the museum's surveillance cameras didn't capture any footage of the thief in action, but the case was searched for fingerprints.

A museum director noted that the glasses are valued at about $2,000.

John has sported his iconic shades for years, everywhere from live performances and concerts to television appearances.