Hotel Monaco

The foyer at Hotel Monaco on Charles Street. The hotel is one of several in Baltimore which are known to host visiting musicians, movie stars and other celebrities. (Karl Merton Ferron, Baltimore Sun / July 24, 2011)

"Celebrities are very particular about their bottled water," said Cook. "They want Fiji, Perrier and Voss."

All in all, celebrity visits are quite tame, unlike in the past when the rich and famous — especially rock stars — were notorious for their crazy hotel antics. Those days are long gone, according to Cook.

"They are literally resting," he said. "They want sleep before their performance."

Not all celebs are perfect guests, though.

On Thanksgiving 2005, rockers 311 and former Creed singer Scott Stapp got into a fight in the bar of the InterContinental Harbor Court Hotel, according to MTV, which reported the altercation. No charges were filed.

To shield against gawkers and autograph hunters, Baltimore hotels have a number of safeguards in place to protect the privacy of their celebrity guests.

At Hotel Monaco, the elevator system works with room keys that only access the floor where the guest is staying. In certain instances, the hotel has blocked off the front entrance of the building to prevent eager fans from snapping photos or asking for autographs.

At the Radisson in Cross Keys, the Presidential Suite can only be entered only through an unmarked door on an undisclosed floor. The hotel's website doesn't even list the trio of rooms that make up the suite as a room option. The suite has to be booked directly through the hotel.

Venues such as 1st Mariner Arena have provided plenty of celebrities for area hotels. It's a win-win for the city, according to Frank Remesch, general manager for the arena.

"We love to hear that artists are choosing to stay in Baltimore hotels rather than hop on a tour bus," Remesch said. "How cool is it to hear that an artist, say, stopped by the Capital Grille for dinner, or you spotted someone in a neighborhood shopping? It just proves that Baltimore really is a hip place."