Gregg Allman delays book tour for medical tests

Gregg Allman is to undergo diagnostic cardiac testing at a clinic in Jacksonsville, Florida to ascertain whether he needs additional care after a recent hernia operation, reports Rolling Stone.

The tests will mean Allman must delay his forthcoming American publicity tour for his memoir, My Cross To Bear.

"I've been working on the book for years and am grateful for all the support I've received in putting it together," said Allman in a statement. "As soon as doctors give me the thumbs up to go back on the road, I will be heading out onto my book tour and I can’t wait to meet all of my fans."

Allman was also scheduled to appear on several American TV shows to promote the book, including Piers Morgan Tonight.