Donny Conn (born Donald Claps, 29 March 1930 – September 2, 2015) was a singer and drummer of the late 1950’s music and comedy trio The Playmates. Other members were pianist and arranger Chic Hetti (born Carl Cicchetti, 26 February 1930) and Morey Carr (31 July 1932 – 1987).

They started out as The Donny Conn Trio while attending the University of Connecticut . Chic, whose real name was Carl Cicchetti, played piano; Donny, whose real last name was Claps, played drums. Going largely unnoticed, they started doing funny bits to attract attention. Attempts at landing a recording contract went unfulfilled until Conn's trio joined Roulette Records as The Playmates (the labels first vocal group). Switching to a more "normal" name than Nitwits was a smart move, but it was not without certain drawbacks as a rhythm and blues girl group from Newark were also called the Playmates (Gwen Brooks and sisters Lucille and Alma Beatty) and appeared
on Savoy at the same time Roulette's guys put out their first single.
on Savoy at the same time Roulette's guys put out their first single.
Easing off on the silly stuff, Donny and Chic composed a light little ditty called "Pretty Woman" for the group's debut. Next they went totally romantic with a cover of The Lovers' late-'57 R&B hit, "Darling it's Wonderful." Neither song caught on. The third single was "Jo-Ann," a rock and roll ballad” that hit the top 20 in February 1958, Savoy's Playmates, meanwhile, changed their name to The Three Playmates.
The trio confidently began moving in a slightly more wacky direction as their Nitwit background was difficult to shake. The most famous of all Playmates records (and, unfortunately, the only one many people are familiar with) is "Beep Beep."
The popularity of this late-'58 top ten hit caused an unintentional windfall for American Motors, the manufacturer of the Nash Rambler. As soon as the record became a hit, sales of the Rambler American increased sharply. In England, though, the BBC denied airplay to songs with brand names, so the Playmates rerecorded it, changing the Cadillac and Nash Rambler references to "limousine" and "bubble car," obscuring much of the song's humour in the process.
The popularity of this late-'58 top ten hit caused an unintentional windfall for American Motors, the manufacturer of the Nash Rambler. As soon as the record became a hit, sales of the Rambler American increased sharply. In England, though, the BBC denied airplay to songs with brand names, so the Playmates rerecorded it, changing the Cadillac and Nash Rambler references to "limousine" and "bubble car," obscuring much of the song's humour in the process.

Leaving Roulette in early 1963, they signed with ABC-Paramount and continued putting out semi-novelties. A couple of singles for Colpix in 1964 and '65 preceded a novelty 45 on Congress. By this time their records proved too dated to sell and "The Ballad of Stanley the Lifeguard," composed by the trio, ended their recording endeavours for several years.
After four albums for Roulette, the novelty group broke up. They performed together off and on, then in 1971 produced a single "Dayenyu (That Would Be Enough For Me)," released by Bell Records. A permanent split occurred at some point resulting in Chic Hetti becoming a school teacher and Morey Carr going into real estate.
After four albums for Roulette, the novelty group broke up. They performed together off and on, then in 1971 produced a single "Dayenyu (That Would Be Enough For Me)," released by Bell Records. A permanent split occurred at some point resulting in Chic Hetti becoming a school teacher and Morey Carr going into real estate.

As for the other Playmate members; Morey Carr died from lung cancer in 1987. I am unable to find any news regarding Chick Hetti who was 90 this year.
(Edited mainly from Way back Attack)