In the 1990s, the World Wide Web was born, grunge reigned over the music scene, and O. J. took off in his Bronco. For many, the 1990s were a golden era. The tech boom made many people rich, the fashion scene was much less ridiculous, and hip-hop hit the mainstream. Despite the slacker attitude, the last decade of the 20th century had its fair share of fads, too. Here are a few that stand out.

Tattoos were a popular fad of the 1990s.

1. Grunge ­ After the glitz and glamour of disco and the excess and pomp of hair bands, it was inevitable that the music pendulum would swing. That shift created grunge -- a genre of music categorized by dissonant harmony, lots of guitars, and cynical lyrics. Grunge was initially delivered by young men and women from the Pacific Northwest who dressed in flannel shirts and ripped jeans. Groups like Nirvana and Pearl Jam were the first to emerge on the scene around 1991, but when the indie scene exploded into the mainstream, groups like Soundgarden, Alice in Chains, and Stone Temple Pilots became household names.

2. Hypercolor T-shirts

Clothing manufacturer Generra created these fad-ready T-shirts in the late '80s, but they really caught on in the '90s. The shirts were dipped in temperature-sensitive pigment, which meant that when heat was applied to the fabric, the color would change. Shirts would turn vague shades of blue, yellow, pink, and gray depending on the level of heat they received, working much like the body-heat activated fad of a previous decade -- the mood ring.

3. The Macarena

"Macarena," a catchy tune from Spanish group Los del Rio, became a worldwide phenomenon in 1996, smashing records by staying at number one on Billboard's Hot 100 chart for an astonishing 14 weeks. The jovial, bouncy tune (that repeats itself over and over and over again) had its own dance, making it two fads in one. The group remains popular in their home country, but once the Macarena had played itself out a year later, the song and the two men behind it were only a distant memory in America.

On the next page, you'll find more fantastic fads of the 1990s from the waif look to tattoos and piercings.

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