And speaking of spawns, alternate teen pop star (not to mention 5-time Grammy Award winner) Christina Aguilera will perform at LAX nightclub (Luxor) on May 31.

To add yourself to the guestlist, click here or call (702) 280-3600.

On May 20 beginning at 10 p.m., original teen pop sensation Tiffany performs her 1980s tunes at Studio 54 (MGM Grand).

Yep, Tiffany, who along with Debbie (Deborah) Gibson paved the way for spawn Britney Spears.

Music throughout the night will be by Resident DJ Scene, and 1980s attire is not only encouraged but preferred.

The best 3 costumes will win prizes.

Tomorrow marks 10 years since the death of Frank Sinatra.

Sinatra and Las Vegas go hand in hand, and to celebrate Frank Sinatra Day, casino marquees all up and down the Strip will change to honor the showman.

The anniversary also marks the launch of the new 42-cent first-class stamp (coincidentally, first-class stamps raised 1 cent this week) featuring the Chairman of the Board. Earlier today at The Bellagio, Sinatra's daughter Tina was at the dedication to preview the stamp. At midnight, Steve Wynn will hold a private reception for the Sinatra family and guests at Wynn Las Vegas.

The stamp is limited to 120,000, and beginning tomorrow you can purchase first-day issues at the Bellagio and Wynn post offices.

Madonna has announced her "Sticky and Sweet" tour for up to 60 concert dates around the world.

Madonna holds the title of having the highest grossing concert by a solo female artist, and this tour looks to be no different. At least, that's what Live Nation is hoping, which has Madonna under partnership for $120 million. Her last tour grossed $260 million, and this time she'll be in larger stadiums.

Her tour begins right after her 50th birthday. It begins Aug. 23 in Wales and different parts of Europe before landing in North America (New Jersey) on Oct. 3.

She performs at the MGM Grand Garden Arena on Nov. 8. Tickets are not yet on sale, but check her website for advanced ticket information.

The Star Trek exhibit at the Las Vegas Hilton could end by the end of the year.

Since 1998, fans of the TV series have traveled to the Hilton from around the world to see "Star Trek: The Experience," which encompasses two shows (including "Borg Invasion 4D" since 2004), Quark's Bar themed bar/restaurant (home to our favorite warp core breech drink) with actors in character, a museum, and a store.

According to TrekMovie.com, owners CBS and Cedar Fair said there are no plans to renew the exhibit, which expires at the end of this year.

A final decision is expected at the end of May. If The Experience does indeed close, it would be in early fall in order to have time to remove everything from the Hilton and return to CBS.

Las Vegas Hilton is host to an annual Star Trek convention, largely because of The Experience. There's no word on whether the conventions will continue at the Hilton.

For a limited time, the Las Vegas Hilton has two of the only Star Trek-themed slot machines in existence, located right outside of The Experience and featuring "adaptive gaming," in which players can create logins and pick up where they left off. We suspect those machines may be all that is left of Star Trek at the Hilton by next year.

Megabucks hit yesterday morning for $21 million, this time at The Palms.

Last time it hit was May 19, 2007 at the Fremont.

Connie Thiele, 58, said she played through $150 before switching machines, where she threw one more $20 bill in and hit it on the first pull. The cost per pull while being eligible for the progressive is $3.

The lucky Austin, Texas woman and her husband both were playing and had their player's cards inserted trying for points for a buffet.

We think they'll now be set for as many buffets as they can possibly eat.

As for Megabucks, it's already been reset to a paltry $10 million