From PEOPLE Magazine Click to enlarge
April 29

LYDON EDWARD

5 lbs. 7 oz.

19 in.

HARTLEY GRACE

4 lbs. 8 oz.

19.5 in.

Since becoming a dad in April, Sugar Ray singer Mark McGrath has added to his vocabulary. "I'd never used the word 'cute' in 42 years," says the tattooed rocker. "Now I say it 10 times a day!" And with good reason-two, actually: his 9-week-old twins, son Lydon Edward and daughter Hartley Grace. Parenthood has been an adjustment for McGrath and fiancée Carin Kingsland, 37, his on-off partner of 16 years. "Our dates used to involve booze and fun, and now it's bottles and onesies," says McGrath. "We go to Target at 8 a.m. to beat the crowds! And we couldn't be happier."

Getting there wasn't easy. Initially reluctant to settle down, McGrath realized the clock was ticking for Kingsland, 37, who faced additional obstacles to getting pregnant: She had lost one ovary to a benign tumor and had fibroids and cysts. So when they didn't conceive after more than a year of trying the old-fashioned way, McGrath dipped into savings for one $15,000 round of IVF. When it worked, says Kingsland, "we were shocked. But I always had faith."

Now they're marveling at being a family of four. Lydon is "impatient and knows what he wants," like his dad, says Kingsland, while Hartley is "calm and sweet like her mother," says McGrath. "Changing diapers, seeing them smile; it's like hearing your song on the radio for the first time," he says. "Nothing has meant more to me than these two children."