Jennifer Lopez shared insight into how her and ex Marc Anthony's 17-year-old twins Max and Emme feel about her career amid her 'Up All Night' Las Vegas Residency in an exclusive E! News interview.

This is a full weekend – especially on Saturday, January 31, with Lopez-Stevenson, plus Bakhram Murtazaliev defending his world title against Josh Kelly; Xander Zayas and Abass Baraou meeting in a ...