'Best Friends Forever'.
Frank Iero has performed 'B.F.F. (Best Friends Forever)' acoustically to raise money for charity MyMusicRX.
It's part of Bedstock, an initiative "where artists play from bed for sick kids stuck in theirs."
Check it out here:
MyMusicRx "invites kids facing cancer and other serious illnesses to feel the music and feel better by exploring exclusive artist greetings, concerts, music lessons, digital instruments and games - anytime, anywhere."
To find out more, head here.