Heading this weekend’s entertainment lineup is singer, dancer, and choreographer Paula Abdul, who earlier this week opened her mini residency at the Flamingo Showroom. Paula’s shows continue on Tuesday and Thursday at 8pm and her shows will run through August 17. Tickets start at $69. Janet Jackson wraps up her engagement at the Park Theater at Park MGM with shows tonight, tomorrow night, and next Wednesday night. Lionel Richie returns to town this weekend with shows tonight and tomorrow night at the Encore Theater at the Wynn. Showtime is 8pm and tickets start at $70. Smooth jazz lovers can check out guitarist Lee Ritenour who plays the Chrome Showroom at the Santa Fe Station on Saturday night at 8pm. Tickets are $34-$44. Hip hop fans never fear; Nas plays the House of Blues at Mandalay Bay on Saturday night at 8pm. Tickets start at $39.50. Diana Ross returns to the Encore Theater at the Wynn on Wednesday night at 8pm and tickets start at $60. Tickets for most concerts are available through Ticketmaster.