Misc: who did zola budd trip in the 1984 los angeles olympics?

Questions

April Fools, Barney pretended to play bass, but this man was backstage playing.?

Former Tubes member who is now GD keyboardist.?

She lost her sparkle you know she isn't the same.?

This man drove his train while under the influence of an illegal substance.?

This song, their first top 40 hit, came 20 years into their careers.?