Kylie went a little nuts when she turned 18 and was finally able to get tattooed. She went to celebrity tattoo artist Bang Bang to get this done. This tattoo is the phonetic spelling of the word "sanity," and it's rumored that she might have the phonetic spelling of "insanity" on her other hip.
Gaga added this trumpet to her collection to commemorate a collaboration that she shared with Tony Bennett. For those who don't know, Tony Bennett is famous for his writing of show tunes and pop songs with his hired big band that has a particularly large brass section. This trumpet, and Bennett's signature, are forever immortalized on the inside of Gaga's right arm.