Celebs just can't get enough of Obamacare! Despite the shutdown of the federal government, Obamacare is in full effect and A-list stars like Lady Gaga, Amy Poehler, Olivia Wilde and Pharrell have already pledged their allegiance to Obamacare on Twitter and are urging others to "get covered" by the Affordable Health Care Act. Famous faces and community groups reached out to social media to help spread the word on President Barack Obama's revolutionary and hotly disputed act.

Pharrell, Alyssa Milano and Kerry Washington all reached out to young adults via Twitter, hoping to inspire their interest in the new subsidized health plan. Sexy ladies Lady Gaga, Olivia Wilde and Amy Poehler kicked it up a notch and got all DIY about it and tweeted out pics with handmade signs that said "#GetCovered" in an attempt to urge others to sign up for the plan.

Musician John Legend wrote on his twitter, "F the shutdown. The Health Insurance Marketplace is now open in every state. Don't wait another day to #GetCovered!"

Grunge legends Pearl Jam tweeted to their more than 2 million followers, "If you want to make sense of the whole healthcare thing, or just want to #GetCovered, check out #KnowYourOptions."

The Obama administration is hoping sign up least 2.7 million young, healthy Americans in the first year to offset the costs of sicker beneficiaries. Let's hope all this star power gets the word out!