Don't fret – these cool birthday party ideas for tweens are sure ... Every tween has their preferred music — let them be ...

“Happy birthday to ‘cool guy’ Peyton ... He is wearing a rainbow sweater as well, which is the most colorful outfit out of he brothers. Fans in the comments had a field day with jokes.

alongside a photo of his and Khloe's daughter posing next to a colorful neon birthday balloon display at home, as well as several throwback pics of her with family. "Happy birthday Twinny!!" ...