Tomorrow (June 21st) is the summer solstice, a time of near un-ending daylight.

The longest day, it's a sacred time, one that carries its resonance even though traditional folklore surrounding this date has waned.

Peggy Sue recorded 'Longest Day Of The Year Blues' last year, taking pride of place on their 'Choir Of Echoes' album. Recently bumping into Willy Mason, the acoustic troubadour has loaned out his vocals for a newly recorded version.

Peggy Sue explain: "We met Willy Mason dressed in formal wear, surrounded by fake plants at Laura Marling's Secret Cinema album launch last summer where we were both secret guests. When we decided to do an alternative version of 'Longest Day of the Year Blues' inspired by the country ballads of Lee Hazelwood we knew he was the man for the job."

"We sent him a slow guitar and voices track to sing to via the miracle of the internet and he sent us back the accapella vocal which we've been listening with a mix of pride and awe ever since. Now reunited with the backing track we are massively excited to present this special day-before-summer-solstice free download: Willy Mason sings 'Longest Day of the Year Blues'."

Check it out now.