Jimmy Kimmel's son Billy is 'doing great' 2 years after heart surgery

Jimmy Kimmel’s son Billy had heart surgery in 2017, and now the 2-year-old is “doing great.”

“He thinks he’s Spider-Man now, so we’re safe from crime,” theJimmy Kimmel Live! host, 51, told Us Weekly exclusively at L.A. Loves Alex’s Lemonade Brings Together Culinary & Entertainment Stars on Saturday, September 14. “He wears the costume all the time. He’s shooting webs all over the house.”

While Billy hasn’t worn his superhero outfit to school “yet,” Kimmel said, “He goes to preschool as his secret identity and then turns into Spider-Man when he comes home.”

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Jimmy Kimmel with his newborn son and family
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Jimmy Kimmel with his newborn son and family
LOS ANGELES, CA - SEPTEMBER 09: Jimmy Kimmel, Molly McNearney, Jane Kimmel and William Kimmel attend the 8th Annual L.A. Loves Alex's Lemonade at UCLA Royce Quad on September 9, 2017 in Los Angeles, California. (Photo by Vivien Killilea/Getty Images for L.A. Love's Alex's Lemonade)
Billy is helping me write tonight's monologue. I'll give our thoughts on the #GrahamCassidy health "care" bill. #BillCassidy @LindseyGrahamSC
LOS ANGELES, CA - SEPTEMBER 09: Jimmy Kimmel, Molly McNearney and Jane Kimmel attend the 8th Annual L.A. Loves Alex's Lemonade at UCLA Royce Quad on September 9, 2017 in Los Angeles, California. (Photo by Vivien Killilea/Getty Images for L.A. Love's Alex's Lemonade)
LOS ANGELES, CA - SEPTEMBER 09: Jane Kimmel, Jimmy Kimmel, Billy Harris and guests attend the 8th Annual L.A. Loves Alex's Lemonade at UCLA Royce Quad on September 9, 2017 in Los Angeles, California. (Photo by Vivien Killilea/Getty Images for L.A. Love's Alex's Lemonade)
LOS ANGELES, CA - SEPTEMBER 17: TV personality Jimmy Kimmel (L) and writer Molly McNearney walk the red carpet during the 69th Annual Primetime Emmy Awards at Microsoft Theater on September 17, 2017 in Los Angeles, California. (Photo by Rich Polk/Getty Images for IMDb)
LOS ANGELES, CA - AUGUST 16: Talk Show Host Jimmy Kimmel and Molly McNearney are seen on August 16, 2017 in Los Angeles, CA. (Photo by Hollywood To You/Star Max/GC Images)
Jane's first movie in a theater - The Boss Baby - made it all the way and, while the credits rolled, she shouted "let's watch it again!" Two little thumbs up
BEVERLY HILLS, CA - FEBRUARY 26: TV Personality Jimmy Kimmel (L) and wife Molly McNearney attend the 2017 Vanity Fair Oscar Party hosted by Graydon Carter at Wallis Annenberg Center for the Performing Arts on February 26, 2017 in Beverly Hills, California. (Photo by C Flanigan/Getty Images)
BEVERLY HILLS, CA - FEBRUARY 26: TV personality Jimmy Kimmel and Molly McNearney arrive at the 2017 Vanity Fair Oscar Party Hosted By Graydon Carter at Wallis Annenberg Center for the Performing Arts on February 26, 2017 in Beverly Hills, California. (Photo by Axelle/Bauer-Griffin/FilmMagic)
WESTWOOD, CA - DECEMBER 07: TV personality Jimmy Kimmel and screenwriter Molly McNearney arrive at the Los Angeles Premiere of 'Office Christmas Party' at Regency Village Theatre on December 7, 2016 in Westwood, California. (Photo by Axelle/Bauer-Griffin/FilmMagic)
LOS ANGELES, CA - SEPTEMBER 10: Tv host Jimmy Kimmel, wife Molly McNearney, and daughter Jane Kimmel attend the 7th annual L.A. Loves Alex's Lemonade at UCLA on September 10, 2016 in Los Angeles, California. (Photo by Rachel Murray/Getty Images for Alex's Lemonade)
LOS ANGELES, CA - SEPTEMBER 09: Jimmy Kimmel attends the 8th Annual L.A. Loves Alex's Lemonade at UCLA Royce Quad on September 9, 2017 in Los Angeles, California. (Photo by Earl Gibson III/WireImage)
LOS ANGELES, CA - SEPTEMBER 09: Jimmy Kimmel attends the 8th Annual L.A. Loves Alex's Lemonade at UCLA Royce Quad on September 9, 2017 in Los Angeles, California. (Photo by Vivien Killilea/Getty Images for L.A. Love's Alex's Lemonade)
LOS ANGELES, CA - SEPTEMBER 09: Late Night TV Host Jimmy Kimmel arrives for the 8th Annual L.A. Loves Alex's Lemonade at UCLA Royce Quad on September 9, 2017 in Los Angeles, California. (Photo by Greg Doherty/Getty Images)
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The New York native welcomed his baby boy in April 2017 with his wife, Molly McNearney, joining the couple’s 5-year-old daughter, Jane. Three hours after Billy arrived, doctors noticed that he had a heart murmur and appeared purple, and he was diagnosed with “tetralogy of fallot with pulmonary atresia.” This is when the pulmonary valve is blocked and there is a hole in the heart wall.

“On Monday morning, Dr. Vaughn Starnes opened his chest and fixed one of the two defects in his heart,” Kimmel explained on his ABC show the following month. “He went in there with a scalpel and did some kind of magic that I couldn’t even begin to explain. He opened the valve, and the operation was a success. It was the longest three hours of my life.”

The Serious Goose author went on to say, “He’s doing great. He’s eating. He’s sleeping. He peed on his mother today while she was changing his diaper. He’s doing all the things that he’s supposed to do. This is the best.”

Kimmel, who also is dad of Katie, 28, and Kevin, 25, from his first marriage, told Us on Saturday that his kids “don’t seem to care” that he’s famous. “If I see a billboard with my face on it, I’ll pull over and I make them get up on the roof of the car just so they can really appreciate it, but they don’t,” he joked. “They think everybody’s father’s on TV. Because to them, that’s what’s normal. I don’t think they know the difference between TV and the iPhone really.”

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Jimmy Kimmel out and about
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Jimmy Kimmel out and about
JIMMY KIMMEL LIVE! - 'Jimmy Kimmel Live!' airs every weeknight at 11:35 p.m. EDT and features a diverse lineup of guests that include celebrities, athletes, musical acts, comedians and human interest subjects, along with comedy bits and a house band. The guests for Monday, April 16 included Rob Lowe ('Super Troopers 2'), Michelle Wolf (Host of this year's White House Correspondents Dinner), and musical guest Jorja Smith. (Randy Holmes/ABC via Getty Images) JIMMY KIMMEL
JIMMY KIMMEL LIVE! - 'Jimmy Kimmel Live!' airs every weeknight at 11:35 p.m. EDT and features a diverse lineup of guests that include celebrities, athletes, musical acts, comedians and human interest subjects, along with comedy bits and a house band. The guests for Thursday, April 12 included Shia LaBeouf ('Borg Vs. McEnroe'), Sandra Oh ('Killing Eve'), and musical guest First Aid Kit. (Randy Holmes/ABC via Getty Images) JIMMY KIMMEL, CLETO AND THE CLETONES
JIMMY KIMMEL LIVE! - 'Jimmy Kimmel Live!' airs every weeknight at 11:35 p.m. EDT and features a diverse lineup of guests that include celebrities, athletes, musical acts, comedians and human interest subjects, along with comedy bits and a house band. The guests for Wednesday, April 11 included Anna Faris ('Overboard'), Chris Hardwick ('Talking Dead'), and musical guest The Regrettes. (Randy Holmes/ABC via Getty Images) JIMMY KIMMEL, CLETO AND THE CLETONES
JIMMY KIMMEL LIVE! - 'Jimmy Kimmel Live!' airs every weeknight at 11:35 p.m. EDT and features a diverse lineup of guests that include celebrities, athletes, musical acts, comedians and human interest subjects, along with comedy bits and a house band. The guests for Wednesday, April 11 included Anna Faris ('Overboard'), Chris Hardwick ('Talking Dead'), and musical guest The Regrettes. (Randy Holmes/ABC via Getty Images) JIMMY KIMMEL
JIMMY KIMMEL LIVE! - 'Jimmy Kimmel Live!' airs every weeknight at 11:35 p.m. EDT and features a diverse lineup of guests that include celebrities, athletes, musical acts, comedians and human interest subjects, along with comedy bits and a house band. The guests for Tuesday, April 10 included Eva Longoria ('Overboard'), Sebastian Maniscalco (Radio City Music Hall Special), and musical guest Daniel Caesar Ft. H.E.R. (Randy Holmes/ABC via Getty Images) JIMMY KIMMEL
JIMMY KIMMEL LIVE! - 'Jimmy Kimmel Live!' airs every weeknight at 11:35 p.m. EDT and features a diverse lineup of guests that include celebrities, athletes, musical acts, comedians and human interest subjects, along with comedy bits and a house band. The guests for Monday, April 9 included Zooey Deschanel ('New Girl'), Snoop Dogg ('Joker's Wild'), and musical guest Snoop Dogg. (Randy Holmes via Getty Images) SNOOP DOGG, JIMMY KIMMEL
JIMMY KIMMEL LIVE! - 'Jimmy Kimmel Live!' airs every weeknight at 11:35 p.m. EDT and features a diverse lineup of guests that include celebrities, athletes, musical acts, comedians and human interest subjects, along with comedy bits and a house band. The guests for Monday, April 9 included Zooey Deschanel ('New Girl'), Snoop Dogg ('Joker's Wild'), and musical guest Snoop Dogg. (Randy Holmes via Getty Images) JIMMY KIMMEL
LOS ANGELES, CA - APRIL 09: Jimmy Kimmel is seen at 'Jimmy Kimmel Live' on April 09, 2018 in Los Angeles, California. (Photo by RB/Bauer-Griffin/GC Images)
JIMMY KIMMEL LIVE! - 'Jimmy Kimmel Live!' airs every weeknight at 11:35 p.m. EDT and features a diverse lineup of guests that include celebrities, athletes, musical acts, comedians and human interest subjects, along with comedy bits and a house band. The guests for Monday, April 2 included Jeffrey Dean Morgan ('Rampage'), Jenna Fischer ('Splitting Up Together'), and musical guest Ashley McBryde. (Randy Holmes/ABC via Getty Images) GUILLERMO RODRIGUEZ, VAISHNAVI SAM, JIMMY KIMMEL, SAMUEL BERNARDO, AMIMRA WARREN
JIMMY KIMMEL LIVE! - 'Jimmy Kimmel Live!' airs every weeknight at 11:35 p.m. EDT and features a diverse lineup of guests that include celebrities, athletes, musical acts, comedians and human interest subjects, along with comedy bits and a house band. The guests for Wednesday, March 21 included Charlie Day ('Pacific Rim Uprising'), Henry Winkler ('Barry'), and musical guest Sabrina Carpenter Ft. Jonas Blue. (Randy Holmes/ABC via Getty Images) HENRY WINKLER, JIMMY KIMMEL
JIMMY KIMMEL LIVE! - 'Jimmy Kimmel Live!' airs every weeknight at 11:35 p.m. EDT and features a diverse lineup of guests that include celebrities, athletes, musical acts, comedians and human interest subjects, along with comedy bits and a house band. The guests for Tuesday, March 20 included Katie Couric ('Stand Up To Cancer'), Judd Apatow ('The Zen Diaries of Garry Shandling'), and musical guest The Decemberists. (Randy Holmes/ABC via Getty Images) JIMMY KIMMEL
JIMMY KIMMEL LIVE! - 'Jimmy Kimmel Live!' airs every weeknight at 11:35 p.m. EDT and features a diverse lineup of guests that include celebrities, athletes, musical acts, comedians and human interest subjects, along with comedy bits and a house band. The guests for Thursday, March 15 included Zach Braff ('Alex, Inc.'), Nick Robinson ('Love, Simon'), and musical guest B�rns. (Randy Holmes/ABC via Getty Images) JIMMY KIMMEL
JIMMY KIMMEL LIVE! - 'Jimmy Kimmel Live!' airs every weeknight at 11:35 p.m. EDT and features a diverse lineup of guests that include celebrities, athletes, musical acts, comedians and human interest subjects, along with comedy bits and a house band. The guests for Tuesday, March 13 included Andy Samberg ('Brooklyn Nine-Nine'), Lena Waithe ('Ready Player One'), and musical guest Buddy Guy. (Randy Holmes/ABC via Getty Images) JIMMY KIMMEL
JIMMY KIMMEL LIVE! - 'Jimmy Kimmel Live!' airs every weeknight at 11:35 p.m. EDT and features a diverse lineup of guests that include celebrities, athletes, musical acts, comedians and human interest subjects, along with comedy bits and a house band. The guests for Monday, March 12 included Lionel Richie ('American Idol), Yara Shahidi ('grown-ish), and musical guest Moon Taxi. (Randy Holmes via Getty Images) JIMMY KIMMEL
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