April Fool’s Day???
Shaykh Ibn ‘Uthaymîn: Not only is this act a lie, which is in itself forbidden according to the Sharî’ah, it also involves imitating the disbelievers, which is forbidden. –http://goo.gl/p1l0zO
Shaykh Muhammad bin Hādī Al-Madkhalī
– And beware of lying, indeed lying leads to evil deeds.
– ‘Woe to the man who lies to make the people laugh, woe to him, woe to him.’
– So this lying done on April Fool’s Day is even more prohibited due to the great evil which involves imitating the Kuffar in this aspect.