Some big-name headliners are performing in Las Vegas in 2019, including a pair of familiar faces. Pitbull is returning to the Zappos Theater at Planet Hollywood to continue his “Time of our Lives” residency. After taking some time away from Vegas for a world tour, Bruno Mars is back at the Park Theater inside the Park MGM. The “Uptown Funk” singer will play dates in April, May, and September.

Hot on the heels of a Rock & Roll Hall of Fame induction this year, Def Leppard will return to Las Vegas for their second residency. This time around, the British act will play the Zappos Theater at Planet Hollywood, making them the first hard rock headliner to play the venue. While their previous run featured the Hysteria album in its entirety, “Def Leppard Hits Las Vegas: The Sin City Residency” should be a more encompassing setlist of the band’s entire career.

Vegas is also welcoming a couple of high-profile superstar divas for first-time residencies. Christina Aguilera is slated to debut “The Xperience” at Zappos Theater in Planet Hollywood on May 31.  Just off the Strip, Cardi B is coming to the Palms this Spring. The Invasion of Privacy artist will be premiering at KAOS nightclub alongside the newest technology, including a 360-degree rotating DJ booth, all designed to enhance live performances.

Park Theater at the Park MGM also raises a lot of excitement for the Las Vegas Strip. Lady Gaga opened her “Enigma” residency to rave reviews at the end of 2018 and is expected to remain a hot ticket throughout the year. The singer and actress is riding a wave of momentum from her leading role in “A Star is Born,” which is destined to pick up even more buzz around Oscar season. The venue also welcomes “Deuces are Wild,” the first-ever Las Vegas residency by Aerosmith with 18 performances scheduled between April and July. The Park Theater was planning to host the return of Britney Spears to Las Vegas this year, but her shows got canceled due to health issues facing the star’s father. The “Domination” residency could be rescheduled for later this year or 2020.

Talk show host Jimmy Kimmel will revisit his Vegas roots with the opening of his comedy club at The LINQ outdoor promenade. The two-story venue will seat up to 300 people, and Kimmel is expected to have a hands-on role in choosing the headliners.

On the flip side, at least one big name will be wrapping up a longtime residency in 2019. After eight years, Celine Dion will perform her final shows at the Colosseum at Caesars Palace in June. Donny & Marie could also be saying goodbye. The sibling Osmond duo are scheduled to play their last dates at the Flamingo in November, although there’s talk Caesars Entertainment wants to resign them for more shows.