LOS ANGELES (AP) - Here's a ditty about John and Meg. 

Singer John Mellencamp and actress Meg Ryan are getting married. 

The 56-year-old announced her engagement to the 67-year-old musician on Instagram . "ENGAGED!," is what she wrote. The post included a drawing of what appears to be the two holding hands. He's also holding a guitar. 

They've been dating on and off since 2010.

Ryan was previously married to actor Dennis Quaid, while Mellencamp has been married three times.

No date was announced.

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