Now that some of the problems with the Obamacare website have been fixed, the administration is resuming prior efforts to recruit younger, healthier Americans to purchase insurance in the federal and state exchanges. This is a critical part to the president's health insurance law because based on the few statistics that have been provided, the majority of the people who have successfully selected (but not necessarily purchased) a health insurance plan appear to be elderly and therefore less healthy. The trouble for this strategy is that younger Americans are not signing up for Obamacare to the degree that the president and his allies had hoped. And with good reason: the people most negatively impacted by the new healthcare law are the young since they will be forced to pay higher premiums to subsidize additional services to the elderly.
To combat this, Obamacare supporters have resumed a prior strategy to enlist left-leaning celebrities to encourage their fans to sign up for insurance. As Bloomberg reports, a number of entertainers have enlisted (who knows if they've been paid) to help brainwash gullible fans to act against their own interests:

