The girls of Fifth Harmony have taken to their collective social media page this afternoon (April 6) to announce some exciting news. 

Their new single, 'Worth It', has been chosen by MTV Hits to be 'Hit of the Week' and it means that they'll be doing a 7-day question and answer session on the company's Twitter account.

5H explained to their 1.98 million followers: "It's official Harmonizers... #WorthIt is @MTVHits #HitOfTheWeek! Make sure ya follow them for an all week long Q&A!!!"

The 'Sledgehammer' sensations, meanwhile, stopped by The White House today (pictured above left with the Obamas) for a special performance at the annual Easter Egg Roll. They sang a wonderful rendition of Happy Birthday to celebrate the fifth anniversary of Michelle Obama's 'Let's Move'. 

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Watch the girls' White House performance here: