Beyoncé‘s “Halo” was co-written by a rock star. He penned lyrics for the bridge of the song. Subsequently, Queen B decided to take the song in another direction.

Beyoncé’s ‘Halo’ was written because Queen B was a huge fan of a OneRepublic song
Ryan Tedder is the lead singer of the pop-rock band OneRepublic. He wrote songs for other artists, including Lil Nas X’s “Thats What I Want,” the Jonas Brothers’ “Sucker,” and Leona Lewis’ “Bleeding Love.”
!function(f,b,e,v,n,t,s)
{if(f.fbq)return;n=f.fbq=function(){n.callMethod?
n.callMethod.apply(n,arguments):n.queue.push(arguments)};
if(!f._fbq)f._fbq=n;n.push=n;n.loaded=!0;n.version=’2.0′;
n.queue=[];t=b.createElement(e);t.async=!0;
t.src=v;s=b.getElementsByTagName(e)[0];
s.parentNode.insertBefore(t,s)}(window, document,’script’,
‘
fbq(‘init’, ‘1931209583834020’);
fbq(‘track’, ‘PageView’);