Pop star Katy Perry has decided to donate the proceeds of her new single Part of Me to charity. The profits from the song will go to arts charity MusiCares Foundation, which assists struggling musicians, reports Contactmusic.com. "My proceeds of Part of Me from iTunes and others will go to one of my favourite charities for the arts, Musicares," Perry tweeted. The I Kissed a Girl hitmaker's latest song shot into the Top 10 on iTunes just hours after she debuted it at the Grammy Awards Sunday.