Joan Alexandra Molinsky (June 8, 1933 - September 4, 2014), professional name Joan Rivers, was an American stand-up comedian, actress, writer, producer, and television host. She was noted for her often controversial comedic persona--heavily self-deprecating or sharply acerbic, especially toward celebrities and politicians. Rivers rose to prominence in 1965 as a guest on The Tonight Show. Hosted by her mentor, Johnny Carson, the show established Rivers' comedic style.

During the late 1950s, Rivers appeared in a short off-Broadway run play, Driftwood, co-starring Barbra Streisand. It ran for six weeks on playwright Maurice Tei Dunn's apartment on 49th Street, in NYC, according to an interview with Adweek. Rivers performed in numerous comedy clubs in the Greenwich Village area of New York City in the early 1960s, including The Bitter End, The Gaslight Cafe  and The Duplex. Between 1963 and 1964, Rivers, along with Jim Connell and Jake Holmes, were in the cabaret act "Jim, Jake & Joan". A 1964 appearance at The Bitter End resulted in their appearance in the motion picture, Once Upon A Coffee House, which was also Rivers' first big screen credit. The group parted ways shortly afterwards, on which member Holmes later recalled: "We were supposed to do this rally for Bobby Kennedy, who was running for New York senator in 1964. We were going to play at the rally. Joan showed up with a [Republican Senate nominee Kenneth] Keating button on. And Jim said take that off. She said no -- she was sticking to her political guns. And Jim said, "Who needs you, anyway?" That was the end [of Jim, Jake & Joan] [...]".  She also made an appearance as a guest on the television program The Tonight Show originating from New York, hosted at the time by Jack Paar. By 1965, Rivers had a stint on Candid Camera as a gag writer and participant; she was "the bait" to lure people into ridiculous situations for the show. After seven auditions during a period of three years, she made her first appearance on The Tonight Show with new host Johnny Carson, on February 17, 1965. Rivers credited this episode to be her breakthrough, as Carson said to her on the air "you're gonna be a star". Following this appeareance, she became a frequent guest on the program and a close friend of Carson.  As her profile raised significantly in the subsequent years, she started to make guest-appearances in numerous popular shows, including The Ed Sullivan Show, The Mike Douglas Show, The Dick Cavett Show and Girl Talk, with Virginia Graham. She also wrote material for the puppet Topo Gigio. She had a brief role in the cult drama film The Swimmer (1968), starring Burt Lancaster, and at the time, she also had a short-lived syndicated daytime talk show, That Show with Joan Rivers, which premiered on September 16, 1968. Each episode had a theme and Rivers did an opening monologue based on the day's topic. The show also featured an expert on the subject and a celebrity guest; Johnny Carson was her first guest. In the middle of the 1960s, she released at least two comedy albums, The Next to Last Joan Rivers Album and Rivers Presents Mr. Phyllis & Other Funny Stories.

Answer the following question by taking a quote from the article: Did he performed alone?
Rivers, along with Jim Connell and Jake Holmes, were in the cabaret act "Jim, Jake & Joan".