Mark Farner

Back in 2005, Grand Funk Railroad singer-and-guitarist Mark Farner, 74, was diagnosed with heart issues, and the possibility of getting a pacemaker was put on the table.

However, it wasn’t until 2012 that Farner went through with the surgery.

His wife Lesia informed his fans via his website.

She wrote: "Back home now and settled in. Mark is doing well. He's very sore and has had the wind knocked out of his sails temporarily. Doc said don't baby him so he's been up and around a bit. He's a trooper!"