Beyonce Describes Holding Kelly Rowland's Baby

— -- Beyoncé is one proud aunt.

The singer took to Instagram to congratulate her longtime best friend Kelly Rowland and her husband, Tim Witherspoon, on the birth of their son, Titan Jewell Witherspoon.

"There's no better feeling than holding my beautiful nephew. I thank god for the honor of witnessing my sisters journey into motherhood," she wrote on Instagram. "I've always dreamt of our little ones growing up together. I'm so thankful for our bond. Baby Ty, I love you so much. Congrats to my Spoons."

Rowland, 33, gave birth to baby Titan on Nov. 4, her rep confirmed to ABC News. He weighed 7.5 lbs.

“We are thrilled to announce that today we are the proud parents of our first son,” the singer said in a statement at the time. "We are blessed to report everyone is healthy and happy!"