Brian Johnson was in a band called Geordie before he joined AC/DC, and some videos featuring him performing live with them have hit the internet!
In the videos, Johnson is not the guy we're used to seeing with AC/DC, and he's not even wearing his signature cap.
The first video below is from a live Geordie performance on "Pop '75" which aired in West Germany in the 1970s. The second was also filmed in 1975, and the third is from 1973.
Photo: Getty Images