Bob Dylan's website is hosting a surprise sneak peek into a previously unannounced new album, 'Shadows of the Night' -- which according to an insert in his new 'Basement Tapes' box set will hit stores sometime in 2015.

The rock legend is streaming his own heartfelt cover of 'Full Moon and Empty Arms,' a 1945 hit by the late crooner Frank Sinatra. Adapted from a Rachmaninoff piano concerto by Buddy Kaye and Ted Mossman, the song has been covered by Robert Goulet and the Platters, as well.

Both Dylan's site and the box set insert also feature the album cover image, shown above. Back in May of 2014, a spokesperson told Rolling Stone the track "is definitely from a forthcoming album due later on this year," but it would appear those plans have been pushed back a little bit.

Dylan has praised Sinatra's work before, once saying that Ol' Blue Eyes' version of 'Ebb Tide' "never failed to fill me with awe." Dylan also performed at Sinatra's 80th birthday tribute concert in 1995, offering 'Restless Farewell' from 1964's 'The Times They Are a-Changin.''

Dylan's most recent studio effort was 2012's 'Tempest.'