The children is singing vs The children are singing

Some examples from the web:

• We begin, as ever, with the children singing to those teachers who are unfortunately leaving us.
• (GRUNTING) It's like children singing Christmas carols.
• Imagine the children in the schools singing these pretty songs.
• It's that little thing I do 70 to 80 hours a week while you're eating, drinking, napping, spending, plucking, ignoring the children and singing rap tunes into a hairbrush.
• It's hard to believe Charlie Harper is a children's singing star.
• (children singing) when i was six, i picked up sticks
• I swear, if it isn't singing children, it's puppies to pet or bingo cards to fill in.
• How come you quit singing for children, ben?
• The Lord blessed me with Clyde, but the children is a problem.
• And through the children is usually the way to go.
• Spending another day with you and the children is unbearable
• Choosing a nanny for the children is an important and delicate task.
• Tripp Sometimes Feels That Helping The Children Is Indulgence.
• The plight of the children is especially disturbing.
• Each of the children is doing his best.
• One of the children is studying, but the others are playing.
• It's always so exciting... when one of the children is given in adoption.
• Another question she asks the children is, "Why are lakes still?"
• Our best chance of answering that question and finding the children is locating Chris Jackson,
• In my area, getting milk for the children is the problem.

Some examples from the web:

• We begin, as ever, with the children singing to those teachers who are unfortunately leaving us.
• (GRUNTING) It's like children singing Christmas carols.
• Imagine the children in the schools singing these pretty songs.
• It's that little thing I do 70 to 80 hours a week while you're eating, drinking, napping, spending, plucking, ignoring the children and singing rap tunes into a hairbrush.
• It's hard to believe Charlie Harper is a children's singing star.
• (children singing) when i was six, i picked up sticks
• I swear, if it isn't singing children, it's puppies to pet or bingo cards to fill in.
• How come you quit singing for children, ben?
• Rachel still believes the children are alive.
• The children are waiting and ready for you.
• Not until the intake interviews with the children are complete.
• The children are being removed for their own safety.
• The children are Kosta's payment.
• And before the children are home from school.
• The children are with Mrs. Johnson.
• All the children are in there except Maurice Stafford.
• The children are cold and hungry.
• I mean the children are settled here.
• You and the children are everything to him.
• The children are impeccably behaved and quite clearly in good health.