Salt-N-Pepa’s Cheryl James thinks female rappers should dress more conservatively. The 56-year-old star – who is known as Salt – believes Nicki Minaj has “led the charge” among female rappers over the last decade and she isn’t a fan of the current trend. Cheryl said: “There was a long time when there were no women. “There was a big gap and then Nicki Minaj came out and she led the charge. Then all these women started going behind her. “But there’s only a certain type and it’s overtly sexual.” Salt-N-Pepa shot to fame in the 80s, but the hip-hop group have always favoured a more conservative ap…