"Hold Your Head Up"

According to Jim Rodford's Sideman (p. 186), fifty years ago to-day (13 April 1975), Argent performed a concert at the Roundhouse London.  "The titles of the album tracks [on Circus] relate to various circus acts, and we rehearsed the whole album with these acts devising their routines around us."

Last year, the Reelin' in the Years archive posted a video of Argent performing "Hold Your Head Up," and while the date given is 1974, I think it's actually from this 1975 concert that Rodford details.  There are a number of circus acts around the band, and it seems unlikely that there would be a second occurrence of such an extravagent show.