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OKLAHOMA – A 92-year-old man brought tears to his grandchildren’s eyes when he got down on one knee to serenade his wife of 50 years.

According to ABC News, nearly 150 family members and friends came to the senior center in Newkirk, Oklahoma to celebrate the 50th wedding anniversary of Harvey and Mildred Wosika.

Lisa Epperly said her grandfather handed her his cell phone and asked her to record something special. Then, he got down on one knee and sang Bing Crosby’s “Let Me Call You Sweetheart,”

Epperly said everyone there had tears in their eyes.

“She just thought it was the sweetest thing ans she said it made her heart happy,” Epperly told ABC News.

The couple had 10 kids combined, and went on to have one child together. They now have 35 grand kid, 29 great-grandchildren and 3 great-great grandchildren.