Christina Aguilera had piercings in her nose and lower lip, shown in this picture from 2002. She has since stopped wearing both of them.

Skylar Grey has double lobe piercings in both ears

Christina Aguilera’s three left ear piercings

Christina Aguilera has three piercings on her right ear

Mutya Buena has a monroe piercing above the left side of her lips

Lexus Amanda has gotten her tongue pierced three times, most recently in September 2014. She writes “3rd time getting this done, still super uncomfortable… Id rather suspend! haha”
video of Lexus getting her tongue pierced

Lexus Amanda wearing a silver ring in her nostril piercing and a jeweled stud in her monroe

Lexus Amanda wearing studs in her nose and monroe piercings

Lexus Amanda has a septum piercing, though she doesn’t always wear jewelry in it. Here she uses a circular barbell in the septum with studs in her nostril and monroe piercings.

Lexus Amanda has her nose pierced on the right side