'Will & Grace' spoilers, cast news 2018: Jennifer Lopez to join the cast for mid-season premiere

"Will & Grace" promotional photoFacebook/NBCWillandGrace

Jennifer Lopez is set to cross over from "Shades of Blue" to "Will & Grace" this March.

Despite the fact that some critics claim that NBC's reboot of "Will & Grace" is not exactly giving off the same vibe as it used to during its original airing, the hit TV show is still keeping fans glued especially during its upcoming return, post-Olympics hiatus. The 12th episode of season 9, titled "The Three Wise Men," seems to be named so due to a  realization revealed by Grace (Debra Messing) that she has dated three men from one family. But the main clincher of the episode seems to be a cameo by none other than Jennifer Lopez herself.

According to the show's promo, Jennifer Lopez a.k.a. J. Lo, music superstar and the lead of "Shades of Blue" will make a remarkable cameo. As Jack claims that he has a featured co-starring role, the next scene reveals that the role actually calls for a cadaver that NYPD Detective Harlee Santos, Lopez's "Shades of Blue" character, shows to a weeping lady.

This is not the first time that Lopez guest stars on "Will & Grace." During its original run, she went on the show thrice as herself, and even sang at the Las Vegas wedding of Karen and Lyle Finster (John Cleese). Fans might remember that she even offered Jack to be a backup dancer on her tour, but ultimately passed him on to the very capable hands of Janet Jackson.

This explains the scene in the promo for episode 12, wherein in true Jack style, he interrupts filming by asking Detective Santos if she remembers him.

Viewers will also have to keep score as they watch what happens when Will (Eric McCormack) and Karen (Megan Mullally) butt heads at the office. However, as soon as their favorite telenovela starts rolling, it seems that the tide will turn for their relationship.

Catch "The Three Wise Men" episode of "Will & Grace" as it returns to NBC on Mar. 1 at 9/8 p.m. C or 10 p.m. EST.