Female empowerment is a must, especially in the entertainment industry, so it goes without saying that it’s incredible to see some of our favorite superstar ladies supporting one another. In honor of National Girlfriends Day, iHeartRadio has compiled a list of lady-to-lady exchanges between Ariana Grande and Demi Lovato, Mariah Carey and Beyoncé, among others, that’ll make you want to call your girlfriends.