Mark McGrath and Fiancée Welcome Twins

Mark McGrath and Carin Kingsland

Iris Moncada

updated 04/28/2010 AT 1:00 PM ET

originally published 04/29/2010 AT 2:10 PM ET

Thursday morning was twice as nice for rocker Mark McGrath and his fiancée, Carin Kingsland, who gave birth to twins – a boy and a girl – in Los Angeles

Son Lydon Edward weighed in at 5 lbs., 7 oz. upon his arrival at 9:54 a.m., daughter Hartley Grace came one minute later, weighing 4 lbs., 8 oz., McGrath s rep tells PEOPLE exclusively.

“We are so lucky,” McGrath tells PEOPLE. “I don t think you can prepare for the love we are feeling.”

After 16 years of on-and-off dating, the Sugar Ray frontman, 42, and Kingsland, 37, an aesthetician, became engaged last New Year s Eve and confirmed in April that they were expecting twins thanks to IVF.

“These two kids will be the luckiest kids in the world in terms of their mom, that s for sure,” says McGrath, who will host Fox s Don t Forget the Lyrics! this fall and tour with Sugar Ray in the summer. “They ll get a lot of love. ”

In fact, he jokes, it may feel like Kingsland has three little ones once they get home. “Carin has taken care of me for the last 16 years,” says McGrath, “[Lydon and Hartley] are going to have trouble playing with their toys because I ll be using them all the time!”

Leave your best wishes for the Kingsland-McGraths at PEOPLE Moms & Babies!

Meet Sandra Bullock’s baby! For the whole story – including photos of her son Louis, an emotional interview about her breakup with Jesse James and her life as a new mom – pick up the new issue of PEOPLE, on newsstands Friday


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