Lady Gaga has taken to revealing details about 'ARTPOP' in social media fashion. Katy Perry, who just cruised ahead of Gaga as the most followed female on Twitter, didn't bother to post a photo for her new album 'Prism,' out Oct. 22, which is three days before Perry's 29th birthday. She went bigger... like tractor trailer-sized. Literally.

The 'California Gurl' sent a golden semi truck through the streets of L.A. to announce the news.

Perry tweeted that L.A. is just the beginning of the truck's, um, promo tour. So perhaps this truck will be making a cross-country trip to spread the word that she will be dropping 'Prism' this fall.

Below is Perry's tweet.

Her good friend / fellow pop singer Adam Lambert saw the truck and tweeted it. Given his flashy and flamboyant style, he probably loved the golden vehicle.

There it is, Katy Kats. Her new album is coming sooner than later. It's the follow-up to the smash 'Teenage Dream,' so expectations are high. Oct. 22 cannot come soon enough!

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