true beginning of Queen's "radio sound" and "recalls the cabaret songs of yesteryear, but also shows how Queen was fast becoming a master of power pop". Rock historian Paul Fowles wrote that "Killer Queen", with its "sleazy Parisian imagery", allowed "free rein" to Mercury's "unique brand of rock theater". Cash Box said that it had "fine lead vocals, solid harmonies and an inventive production" and that "this song is bound to make you smile with its lighthearted whimsy and confident approach." American pop singer Katy Perry cites "Killer Queen" as an important influence on her, saying it "made me discover music and helped me come into my own at the age of 15". Personnel Freddie Mercury – lead vocals and backing vocals, grand piano, tack piano, finger snapping Brian May – electric guitar, backing vocals Roger Taylor – drums, triangle, chimes, backing vocals John Deacon – bass guitar Chart performance Weekly charts Year-end charts Sales and certifications 5 Seconds of Summer version In October 2018, Australian band 5 Seconds of Summer released a version of the song ahead of release of Queen's biopic, Bohemian Rhapsody. The cover was released to support the Mercury Phoenix Trust, an organization founded by Queen's band members that aims to provide support in the fight against HIV/AIDS. The song was released to coincide with the release of the film Bohemian Rhapsody. Universal Music Group released 3 tracks by different artists' channeling their inner Freddie Mercury; this is the second installment, following Shawn Mendes' "Under Pressure" released two weeks earlier. According to 5 Seconds of Summer, Queen's "unique harmonies, the fluidity to their songwriting and how they each used their own musicality to back each other up have always inspired us. For us, the exploration of individual vocalists in a band is incredibly important and Queen helped us to see the future of how we want to sing, in addition to how we play our instruments." A portion of the profits from the "Killer Queen" cover will be donated to Mercury Phoenix Trust, which was founded by Queen's Brian May and Roger Taylor (and the group's manager, Jim Beach) after Mercury's death to help fight AIDS worldwide. Reception Brooke Bajgrowicz from Billboard said "The four-piece pop rock band launch into the anthemic a cappella chorus from the get-go... By the time the full-force chorus arrives, the fluid harmonies and catchy phrasing are instantly recognizable. While somewhat