learnguitarfasttips.com – An easy guitar lesson for beginners who want to learn to play (and sing) “Grenade” by Bruno Mars with no capo and no bar chords. Chords Demonstrated in Guitar Lesson G, D, Em, C, Am, Bm, B The chords B and Am are only used in certain parts of the song, so don’t let the amount of chords scare you! Also, if you’re not comfortable with playing B, try playing E7 instead. It’s easier and sounds pretty OK. Most of the song is played using the chords G, D, Em, C and Bm. More videos, guitar song tutorials and beginner lessons available on the website.