rockband3En route to see Ashes Divide at the Viper Room, noble reader and fan RJK snapped this photo of a billboard. Four familiar icons, one unfamiliar, and one giant number “3”

The billboard is just a mile away from LAX, it appears Harmonix is gearing up to make the big announcement of the next Rock Band. The Electronic Entertainment Expo (E3) starts next week in Los Angeles. We already have heard early reports that we’ll see keyboards added to the mix, and this ad pretty much removes all doubt.