Since U Been Gone hitmaker Kelly Clarkson has been leaving hints on Twitter about her upcoming album.

The 32-year-old singer took to the social networking site, writing, "People keep asking. My next album is pop. But I am always influenced by music I love, which is pop-rock/country/r&b/dance #whoknowswhatsnext."

She later posted, "Oh and people also keep asking about the duet on the record. Here's a hint ....this wasn't our first time to sing together :)

"Two clues for the first single ....Proof of life & Dr. Dre #TheNextEpisode."

Clarkson welcomed her first child, River Rose, with husband Brandon Blackstock in June 2014.