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Frank Sinatra Jr., crooner and son of Ol' Blue Eyes himself, died unexpectedly of cardiac arrest earlier today at the age of 72. Sinatra Jr. was on tour in Daytona Beach, Florida when he passed.

Born with some extremely large shoes to fill, Sinatra Jr. spent his life both upholding the legacy of his father and making a career in music for himself. He could often be found singing his father's song, "New York, New York" at Yankee games.

As happens when celebrities die in 2016, friends and colleagues tweeted their condolences, prayers, and support.

While an unexpected death is always a tragedy, it's somewhat comforting to know that Frank Jr. spent his last days doing what he loved. He even had a show scheduled for tonight at The Peabody Daytona Beach, a fact that contains a bit of macabre beauty; there are many artists I'm sure pray they get to play until the day they die.

Rest in peace Frank Jr. Say hi to your pops for us.