You just can't keep a good couple down. Gwen Stefani [1] and Blake Shelton [2] made yet another sweet appearance together [3] as they performed at Apollo in the Hamptons on Saturday. Per usual, the two showed off their incredible chemistry [4] as they serenaded each other on stage. While Blake dressed casually in a button-down and jeans, Gwen looked like a complete rock star wearing colorful prints and her signature red lipstick. Not only did the couple steal a few loving glances [5] during their set, but they also showed some sweet PDA as they embraced in a hug. We just can't get enough of their adorable romance [6]!