Irreplaceable was Beyoncé 's fourth number-one single .
Following the break-up of Destiny 's Child in 2006 , she released her second solo album , B'Day ( 2006 ) , which contained her fourth number one single , `` Irreplaceable '' , as well as the top ten singles `` Déjà Vu '' , and `` Beautiful Liar '' .
Beyoncé