Aside from being a pop star, Dua Lipa has clearly mastered the art of vacationing — and we caught her doing exactly that in Mexico on Saturday … hitting the beach in a teeny bikini and turning up the heat with some serious PDA with her fiancé, Callum Turner.

Check out the pics … the “Physical” hitmaker showed off her toned physique in a cheetah print thong bikini … allowing nearly every inch of her skin access to some sun action. At one point, she shimmied her way out of her bikini top to allow Callum to give her a full-body sunscreen rubdown.

The pair could barely keep their hands off each other, and at one point … had their arms wrapped around each other as they took a romantic stroll along the beach.

Dua fully earned her R&R, as she wrapped her “Radical Optimism” tour at the beginning of the month. She spent just over a year on the road bringing her music to fans around the world … but she made sure she got some days off, too.

Nearly a dozen gunmen reportedly opened fire outside a bar in South Africa, killing 9 people and injuring 10.

The mass shooting was the second in South Africa in the last 3 weeks, with the latest incident occurring early Sunday morning in Bekkersdal, a township 28 miles west of Johannesburg, according to CBS.

When the smoke cleared, nine people were reportedly dead and 10 more injured. The conditions of the survivors are not known.

Police told CBS that some of the victims were randomly shot, and a ride-sharing driver — who had just dropped off a passenger — was among the dead.

The Associated Press, citing a police official, said the gunmen were armed with mostly 9 millimeter semi-automatics and at least one AK-47. A manhunt is underway to capture the killers.

During its final episode of the year, “Saturday Night Live” paused to pay tribute to late producer Rob Reiner … flashing a title card with an old photo of Rob before the show’s “goodnight” segment.

The in memoriam gesture comes less than a week after Reiner and his wife — Michele Singer Reiner — were found dead in their Los Angeles home. Their son — Nick Reiner — is now facing first-degree murder charges after being arrested in connection with their deaths.

Reiner hosted SNL’s third episode back in 1975 during the show’s early days … and unlike hosts George Carlin and Paul Simon at the time, he fully joined in the sketches … helping set the style that would forever define the series.

As we reported, the couple’s daughter, Romy, is the one who discovered Rob and Michele’s bodies and called 911. She told police her brother Nick was “dangerous” and should be considered a suspect.

Nick was arrested about 6 hours after police responded to the call. He’s currently held on suicide watch at Men’s Central Jail in L.A. without bond and awaits his January 7th hearing.