CUPERTINO (CBS/AP) — Apple has sent a colorful invitation for an event next week amid speculation that it may debut new colors for the latest iPhone.

The invitation, emailed Tuesday, has a picture of the Apple logo surrounded by multi-colored polka dots and the sentence: “This should brighten everyone’s day.”

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The iPhone 5, which went on sale in September of 2012, comes only in black or white.

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The event is on Sept. 10 at Apple Inc. headquarters in Cupertino, Calif. The company’s latest phone model was expected to be unveiled this month.

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