Weeks after the April 14 kidnapping of more than 200 Nigerian girls, worried families and supporters blamed the government for not doing enough to find them. Their cries spread worldwide on social media under the hashtag #BringBackOurGirls. From regular people to celebrities, here are some of the people participating in the movement. Courtesy Corrie Mwende

First Lady Michelle Obama tweeted this picture of herself holding a #BringBackOurGirls sign in support of the schoolgirls abducted by Boko Haram in Nigeria. The White House

"We hear it like it's not happening in our region so it doesn't concern us but that's not right," says Milliscent Maduagwu from Port Harcourt, Nigeria. "This fight on terrorism is not just the Commander in Chief's and the army, but ours as well!" Courtesy Milliscent Maduagwu

"These girls could have been my sisters or worst still my daughter," says Emmanuel Oleabhiele from Doha, Qatar. "My daughter is 6 months old and I fear for her future as a Nigerian." Courtesy Emmanuel Oleabhiele

Malala Yousafzai, the world's most famous advocate for girls' right to education, says that "girls in Nigeria are my sisters." This photo was posted to the @MalalaFund Twitter account on May 6. Malala Yousafzai/Twitter

Ify Elueze of Bonn, Germany, asks, "How can the world sit and watch?! It is no longer just the responsibility of the Nigerian government, now it is your responsibility and mine!" Courtesy Ify Elueze

British supermodel Cara Delevingne posted this photo on her Instagram account saying, "Everyone help and raise awareness #regram #repost or make your own!" Cara Delevingne/Instagram

"Government should stop playing politics with our sister[s]," says Nigerian Dauda Kaks Courtesy Dauda Kaks

American singer-songwriter Alicia Keys posted this photo on her Instagram account with this message: "I'm so saddened and enraged that these girls are not back where they belong! Safe at home and at school! Safe with their families! Safe to become the incredible leaders and powerful voices they are yet to be." Alicia Keys/Instagram

"You are most likely thinking to yourself, 'What's the point in posting another picture or status to speak about this issue?,"' says Uchenna Mildred Udeh from St. John, New Brunswick. "I can tell you this: it will. Do not underestimate the power of your voice. We have to make this personal." Courtesy Uchenna Mildred Udeh

British singer-songwriter Leona Lewis took a stand to #BringBackOurGirls on her Twitter account on May 7. Leona Lewis/Instagram

"I think it's high time we all start praying for Nigeria and stop complaining," says Lotanna Ugwu from Abuja, Nigeria. "It's only God that can touch the hearts of those who kidnapped the young girls." Courtesy Lotanna Ugwu