*Just when you thought we were done with auto-tune, the artist who revived it is back again with a special microphone that hopes to keep the trend going.

His “I Am T-Pain Mic” hit retail stores such as K-Mart and Toys “R” Us last month – a move that followed his 2009 voice-modification app for iPhones. It was then that he realized there was a huge market for the service.

“A lot of kids don’t have cell phones, (so) in order to reach everyone, I’m taking it to where it can be a toy,” the Grammy-winning artist and producer told the AP. “They sell out every week. This was far beyond my expectations.”

The “I Am T-Pain Mic” uses a voice modification technique where users record songs against a selection of beats, which then modifies their voice for the playback. The microphone also comes with a USB plug to download and share recorded songs.

“We’ve got add-on packages coming,” T-Pain said. “There is going to be video camera you can use with it. We have speakers going on right now and a deco pack to decorate with. We still haven’t dropped the special edition ones, which will have more production and be an even better working (microphone).”

Though many artists often criticize Auto-Tune because it masks reality, T-Pain defends it saying the biggest misconception is that performers don’t really have to be able to sing when they employ it.

“That’s the furthest from the truth,” he said. “Your voice may sound better, but you still have to know music. You still have to know how to write a song. You can’t just use Auto-Tune and have a hit song. It only corrects the pitch but it doesn’t give you a singing career.”