it is sung by vs it is sang by

Some examples from the web:

• It is a song sung by beautiful children who will soon turn into monsters,
• It is a song sung by beautiful children who will soon turn into monsters, leaving corpses spread across the length and breadth of Europe!
• G.O.D.'s "Lies" is sung by Chief Jung's generation.
• Have it sung by a gifted amateur singer.
• They're the last words sung by Lakme, sir.
• As suspected, the transmissions are the songs sung by whales.
• This is "Lux Aurumque" sung by the Virtual Choir.
• I love the songs sung by Kylie Minogue.
• - Not if they're sung by extraterrestrials.
• Vic's name is Sung Bang.
• Besouro Is sung in capoeira rodas throughout the world up to present day.
• A legend is sung Of when England was young
• Yuletide carols Being sung by a choir
• The song on your piano, sung by a Mr Hutton from Goathland.
• All the high notes on my album were sung by a little Filipino boy named Dalawapo.
• Fecchia fears he will be betrayed by the lovely Mariolina, whose praises are sung by a host of nightingales.
• What you're hearing is recorded whale song, sung by the male.
• Pain can't be sung by professional voices, by singers trained at a conservatoire.
• The performance will continue in 10 minutes' time, when the role of the Countess will be sung by Miss Christine Daaé.
• It's sung by that singer, Bei-something?

Some examples from the web:

• Shawn Whorton Hey everyone...this is a wonderful song, but it is sang by Carroll Roberson. ELVIS NEVER SANG THIS SONG . The song was written by a ...
• This song is from the first act of the musical Les Miserables. It is sang by the character Fantine, in which she recalls the man whom she once loved, who ...
• Jun 1, 2004 ... looking for artist that sings the angel eyes I believe it is sang by a band back in the eighties please someone help me its for my sisters wedding.
• Dec 16, 2010 ... Uploaded on Dec 16, 2010. FYI - This is not done by Red Sovine. It is sang by an Aussie country music artist known as Nev Nicholls ...