Making good on her promise that her current road trip would be her last, Tina Turner announced at a show on Saturday night in Zurich, Switzerland, that she would retire after she completes her "Twenty Four Seven" tour.

"I've done enough," Turner told the crowd of 75,000 at Letzigrund Stadium. "I've been performing for 44 years. I really should hang up my dancing shoes," she said, according to Reuters.

Turner's London publicist, Bernard Doherty, told the news service Saturday that the 60-year-old singer wanted to make the announcement in Zurich, where she's lived for the last 15 years.

"She wants to go out on top, while she is at her best," Doherty said. "She doesn't want to become a faded caricature of herself."

"I can't keep up with Janet Jackson. I'm not a diva like Diana Ross," Turner reportedly told the crowd in Zurich. "I'm rock 'n' roll, but I'm happy I can do it one more time, so people can remember me at my best."

Turner (born Annie Mae Bullock) first found chart success with Ike Turner, whom she would later marry, with the 1960 hit "A Fool in Love," which rose to #2 on the R&B chart and #27 on the pop chart. Perhaps most famous for their 1971 cover of Creedence Clearwater Revival's "Proud Mary" (RealAudio excerpt), the Ike and Tina Turner Revue became known for their lively stage shows and Tina's high-energy dancing, which Rolling Stone Mick Jagger later admitted was a model for his stage moves.

According to her 1986 autobiography, "I, Tina," her relationship with Ike was an abusive one. She wrote that she ran away from Turner in 1976 with only 36 cents in her pocket and spent the rest of the decade in relative obscurity, at one point living on food stamps but finding occasional nightclub dates.

Ike, who, in 1990, was convicted of possessing and transporting cocaine, was behind bars when he and Tina were inducted into the Rock and Roll Hall of Fame in January 1991.

She started her comeback in 1981, when she opened several dates on the Rolling Stones' U.S. tour. In 1983, her cover of Al Green's "Let's Stay Together" became a hit in the United Kingdom, and her 1984 album, Private Dancer, yielded five chart hits, including "What's Love Got to Do With It" (RealAudio excerpt) and "Better Be Good to Me."

Her single "We Don't Need Another Hero," from the movie "Mad Max Beyond Thunderdome" (in which she had a starring role), hit #2 in 1985. Turner continued to have chart success through the late 1980s, with the albums Break Every Rule (1986) and Foreign Affair (1989). Her output since then has found more success in Europe than in the United States, though this year's Twenty Four Seven was certified gold stateside.

Turner's tour will hit stadiums and festivals in Europe through August, and she will play at least six dates in the United States and Canada in September, according to concert-industry publication Pollstar. She may play as many as 40 more U.S. shows, according to Reuters, which said her last concert will be in San Francisco in November.

Doherty told Reuters that Turner has been looking at film scripts but was waiting for the right role.

"She says she has lived the role of a victim, and playing one doesn't interest her," Doherty said.

Doherty said Turner will play occasional live dates, but only at charity concerts or as favors for other artists.

When Turner first announced this tour would be her last, singer Lionel Richie — who opened for Turner on the first U.S. leg of her shows — expressed disbelief.

"I think we'll still be seeing her up there when she's 90," the former Commodores leader said. "I don't know if she knows how to sit still. She's relaxed when she's on the stage, under the spotlight."

For a Tina Turner career retrospective, click here.