President Barack Obama and his wife, Michelle, have paid tribute to the late Chicago DJ, Frankie Knuckles, by sending his family an open letter.

The Obama's wanted to offer their kind thought and prayers to the friends and family of the 59 year-old DJ, who died earlier this month of Type II diabetes-related complications.

David Morales, who was a renowned DJ and friend of Knuckles, posted the letter on his Facebook page on Tuesday (April 22nd).

"Frankie's memorial service was emotionally special," Morales wrote. "To have his friends, family and the Governor speak about Frankie goes to show the impact he has had on people. You know you're a TRUE LEGEND when u get one of these..[referencing the Obamas' letter]."

The President and First Lady wrote: "Frankie's work helped open minds and bring people together, blending genres to capture our attention and ignite our imaginations. He was a trailblazer in his field, and his legacy lives on in the city of Chicago and on dance floors across the globe."

"While he will be dearly missed, we trust Frankie's spirit will remain a guiding force," the Obama's continued. "At this difficult time, please know we are holding you all in our thoughts and prayers."

Frankie Knuckles
Frankie Knuckles was considered a pioneer of house music

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Knuckles was branded 'The Godfather of House Music', a title he earned while holding his legendary marathon sets which featured all genres, from disco and post-punk to R&B and Eurodisco and did much of his best work at his Chicago venues The Warehouse (1977-82) and The Power Plant (1983-85).

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Back in 2004, Obama was the Illinois state Senator and was credited as the driving force behind making August 25th Frankie Knuckles Day in Chicago.