The Sims 3: Showtime. Info, trailer, gameplay, buy game.

The Sims 3: Showtime is the sixth expansion pack for The Sims 3 on Mac and PC. It was released on March 6, 2012. A limited collector's edition includes exclusive in-game content such as stages and costumes along with a poster based on American pop singer Katy Perry.

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SimPort
SimPort allows players to send Star performers on tour to perform special shows in their friends' towns (only if you have internet and friends). They can also invite your friends to send their Sims to perform for you and customize the stage in venues with special themed backgrounds, props, lights and special effects. Players can throw objects at performers - ranging from flowers to lettuce. Choosing not to use SimPort will not change gameplay with any interactions that do not require SimPort. A player can unlock backgrounds, props, and costumes for their Sim if they choose to use SimPort. Sims who visit a player's town via SimPort will default to the traits, clothes, and objects that they have locally in their game. Players can message other players while their Sims are performing in other towns. Note, there are 3 versions. The normal, limited, and Katy Perry version do not have much difference other than special venues, stages and clothing. 

Starlight Shores
Starlight Shores is a new world that is included in Showtime. The town is inspired by Hollywood, and it has multiple venues/stadiums in which your sims can perform, (depending on how high you are in your performing career.)
Careers

Rise to Stardom—Venture into a new world and live the dream as a singer, acrobat, magician, or DJ. Watch your Sims rise to fame—or go down in flames as they perform for other Sims.

New Objects
The expansion pack includes pool tables, karaoke machines, DJ booths, new guitars, batons, microphones, spotlights, speaker systems, pull up bars, jukeboxes, an electro-dance sphere, golf-game, domino, skeeball game, photo booth, a golf driving range, portable MP3 players and new lighting. As with all previous expansion packs, Showtime includes new clothing and hairstyles.

Limited Collector's edition
A special Katy Perry edition entitled The Sims 3 Showtime: Katy Perry Collector's Edition will include Katy Perry themed objects, hair styles, and venue based on her concept for her album Teenage Dream. The Collector’s Edition includes a downloadable venue, plus a Katy Perry themed hairstyle, guitar, fruit-themed stage props, an exclusive poster, and fruit costumes. Fruit-themed stage props include a banana and watermelon statue. The box art falsely suggests that a Katy Perry sim comes with the game, she is only available via additional free download from EA's official site.[citation needed]

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