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Mariah Carey's concert is reportedly up in the air following the deadly terrors in Brussels that killed dozens and injured many others. The mother of two is scheduled to perform in the capital city of Belgium on her birthday this coming weekend.

According to TMZ, Carey's team is "strongly against" her performing in the city due to security concerns as Europe is on high alert after the attacks. The show is planned for March 27, which coincides with her 45th birthday, at the Forest National as part of her world tour. Her camp is waiting for advice from U.S. embassy before making any decision.

Hollywood has been sending prayers for Belgium after the horrifying terrors. Celebrities like Kim Kardashian, Kendall Jenner, Kourtney kardashian, Khloe Kardashian, Ian Somerhalder, Gisele Bundchen and Kerry Washington took to Twitter to spread message of peace and send love to the country.

My heart goes out to everyone in Brussels! Praying for peace throughout the world.

— Kim Kardashian West (@KimKardashian) March 22, 2016

my heart goes out to all those in Brussels. praying for you. praying for the world. pic.twitter.com/cUgD67ssw7

— Kendall Jenner (@KendallJenner) March 22, 2016

I was supposed to be in the Beautiful city of Brussels soon...My heart is with you all.So terrible https://t.co/9c2SdYioGU

— Ian Somerhalder (@iansomerhalder) March 22, 2016

My heart is sad this morning. Praying for Belgium, praying for all of us, praying for peace. pic.twitter.com/EiEuqYikec

— Kourtney Kardashian (@kourtneykardash) March 22, 2016

My thoughts and prayers are with #Brussels #PrayForBelgium #PrayforTurkey #PrayForTheWorld #PrayForPeace 🙏🙏🙏🙏🙏

— Gisele Bündchen (@giseleofficial) March 22, 2016

Terrorism is one of the scariest things. It does not function like anything else in this world.… https://t.co/fL96Cevclp

— Khloé (@khloekardashian) March 22, 2016

🙏🏾 #Brussels

— kerry washington (@kerrywashington) March 22, 2016