It is narrated from Sayyiduna Abu Umamah (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) cursed the woman who attaches hair extensions and the woman who has them attached, and the woman who tattoos and the woman who has herself tattooed.
Hadith Referenceالمعجم الكبير للطبراني / باب الصاد / 7742