News Mark Wahlberg Surprises Crowd at New Kids on the Block Concert! By Jackie Willis 10:11 AM PDT, June 23, 2015 This video is unavailable because we were unable to load a message from our sponsors. If you are using ad-blocking software, please disable it and reload the page. 40:17Mark Wahlberg Makes Surprise Appearance At NKOTB's Main Event To…04:24'Euphoria' Cast on Their Close Bond Amid a 'Chaotic' Season 2 (E…06:45'90 Day Fiancé': Loren and Alexei on Their New Spinoff and Son A…11:30How Lady Gaga Is Approaching New Projects After 'House of Gucci'…02:10Oliver Hudson Gives Behind-the-Scenes Look at ‘The Cleaning Lady…01:28'Wipeout' Contestants Fight Their Way Through Obstacle Course to…07:43How John Cena Brought a Likeability Factor to His ‘Peacemaker’ C…03:29‘Yellowjackets’: Everything to Know Before Season 1 Finale01:00Oscars 2022: Who Will Host?01:22'This Is Us' Sneak Peek: Jack Is Worried His Kids Will Forget Hi…03:34Watch Cardi B's Morning Routine With Kulture and Newborn Son02:44How ‘Blossom’ Cast Reunion Came About on ‘Call Me Kat’ Season 2 …03:44Adrienne Houghton Gives an Inside Look at ‘I Can See Your Voice’…08:52Jessica Chastain on ‘Zero Dark Thirty’ 10 Years Later and PSIFA …04:15Kim Kardashian and Pete Davidson Spotted Together on Bahamas Get…03:04Cardi B Shares Adorable Video of Offset Cradling Son02:14Darcey and Georgi Open up About Their Issues at Couples Therapy …01:51Denzel Washington Pays Tribute to Sidney Poitier (Exclusive)11:07Jamie Lynn Spears on Britney's Conservatorship and Finding Her O… It was double the Wahlbergs at New York City's Madison Square Garden on Monday night! Mark Wahlberg -- formerly known as Marky Mark -- surprised thousands of fans at the New Kids on the Block show when he showed up during his brother Donnie Wahlberg's performance of "Good Vibrations." This was the first time the Ted 2 star has joined his brother's boy band on stage in over 20 years. WATCH: New Kids on the Block -- Then and Now And he wasn't the only surprise star of the night! Rapper 50 Cent introduced Mark to the excited audience, exclaiming that it looked like there were some "good vibrations here tonight."View this post on InstagramA post shared by New Kids On The Block (@nkotb)The 39-year-old hip-hop star was also joined by Biz Markie. The rappers performed their hits "Just a Friend" and "In Da Club." PHOTOS: New Kids on the Block Flaunt Their Abs on InstagramView this post on InstagramA post shared by New Kids On The Block (@nkotb) NKOTB's Main Event tour has been thrilling fans across the country since they first kicked off their 40-concert series in Las Vegas on May 1. They were also joined by '90s chart-toppers TLC and rapper Nelly.ET was there during their tour rehearsals. Check it out:Backstage with NKOTB Before The Launch of Their World Tour This video is unavailable because we were unable to load a message from our sponsors. If you are using ad-blocking software, please disable it and reload the page.