YouTube sensation Fred Stobaugh's love song, Oh Sweet Lorraine, which the 96-year-old wrote in the memory of his deceased wife, made the iTunes Top 10.

The song is dedicated to Fred's wife Lorraine Stobaugh, who passed away a month before he started writing the tune. It was the ninth most downloaded song on iTunes over the weekend. The track is competing with hits by Lady Gaga, Miley Cyrus, Katy Perry, Robin Thicke and more.

Lorraine died in April at the age of 91. The couple's 73rd wedding anniversary was just around the corner in June. Fred entered the song into a Green Shoe Studio's songwriting contest. The company only accepted entries in a digital format (to be submitted via YouTube links) but the Illinois-native sent in a handwritten note, talking about his song and its inspiration. Studio executivess were so moved by his story that they decided not only to produce his song, but also create a short documentary around it.

The song -- which was actually posted online in July -- only recently started getting attention. Oh Sweet Lorraine is currently up for purchase on iTunes.

Fred met Lorraine in 1938 when she was a carhop at an A.W. root beer stand.

"She was just the prettiest girl I ever saw," Fred said in the short documentary. "Real timid-like. I just fell in love with her right there."

The couple married in 1940 and had three children and four grandchildren.

"After she passed away, I was just sitting in the front room one evening by myself, and it just came right to me," he says about writing the song. "I just kept humming it and singing it. That's how I came to write it. It just fit her."

Watch the song and documentary here: