Jack Daniel's Sinatra Select has been created in honour of this friendship with Old Blue Eyes. The bold, smooth qualities of the Sinatra Select come from the specially made Sinatra barrels in which part of the whiskey was aged. Deep grooves were cut into the staves of the casks, increasing the amount of exposure the whiskey had to the wood. It is then married with Jack Daniel's Old No. 7 and bottled at 45% abv, which is how Sinatra would have enjoyed it back in the day.