Doodle 4 Google 2013 is open for submissions for K-12th graders Image credit: Kimihiro Hoshino/AFP/Getty Images

Ready, set…doodle!

It's that time of year again, time for the nation's youngest artists to put their imaginations to paper and create Google's next doodle for the popular search engine's homepage.

Google has announced their opening for submissions for the sixth annual " Doodle 4 Google," a yearly competition "inviting kids to dream big" to change Google's classic logo. This year's theme is "My Best Day Ever" which asks students in grades kindergarten through 12th to submit drawings or doodles representing what their best day looks like.

"The type of creativity that comes from children naturally is what I as as professional creative person work at," said Ryan Germick, Doodle team lead. "It's awesome to go straight to the source to see children who are uninhibited and just express themselves in a creative and fun way."

The winning artist will be awarded a $30,000 scholarship. In addition, their school will win a $50,000 technology grant.

Winning submissions will be selected from a panel of guest judges including ABC News journalist and television host, Katie Couric and musician Ahmir "?uestlove" Thompson of The Roots. After the panel cast their votes, public voting will begin on May 1 for winners from the 50 states. On May 22, Google will announce the National Winner at a ceremony for the 50 state winners in New York City. All 50 state winners will have an opportunity to showcase their artwork in an exhibit at the American Museum of Natural History from May 22 through July 14.

The winning doodle will be featured on Google's homepage on May 23.

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Last year's, Google received 114,000 "Doodle 4 Google" submissions from students throughout the 50 states.

"It's really about how you answer the theme and create something that's really striking," said Germick. "It doesn't take an M.F.A. in studio art to make something that's fun, beautiful and moving."