David Johnson, also known as the World Famous Bushman, is a busker who scares passers-by along Fisherman's Wharf in San Francisco, active since 1980.

When they approach, he shakes the bush towards the unsuspecting tourists and startles them, sometimes making gruff "oogah-boogah" noises, while in-the-know observers giggle.

[1] The Bushman typically operates toward the western end of the Wharf (at Jefferson and Hyde Streets or thereabouts), well to the west of the Grotto.

At one point, he employed a bodyguard to protect himself against attacks by the unamused, distract his targets, and to alert him to the approach of elderly people so he could avoid scaring them.

"[8] However, the San Francisco Chronicle ran an article in 1999 suggesting that Johnson was the original Bushman, joined by Jacobs in the 1990s.

[10] Gregory Jacobs died February 23, 2014, due to heart failure at the age of 60 years old, whilst Johnson remained active[3] until 2019.