Melissa Joan Hart is opening up about a moment from her past that has lingered in her conscience for years. The “Sabrina the Teenage Witch” star recently shared her guilt over taking pop sensation Britney Spears to her first-ever club when Spears was just 17 years old.The two stars first connected when Hart appeared in Spears’ music video for “(You Drive Me) Crazy.” At the time, Spears was on the brink of superstardom, while Hart, then 23, was a household name thanks to her role as Sabrina. Reflecting on their time together in a new career retrospective interview with Entertainment Tonight, Hart shared, “Britney and I got to do a lot of press together.