Heavy D performs at the BET Hip Hop Awards 2011 at Boisfeuillet Jones Atlanta Civic Center on October 1, 2011 in Atlanta

*Tributes have been pouring in for late rapper Heavy D, who reportedly died of a suspected heart attack on Tuesday after walking up stairs at his Beverly Hills condo.

TMZ.com is reporting that Heavy D weighed 344 pounds at the time of his death, and officials are considering his height (6’4”) and weight as part of their investigation.  An autopsy is scheduled for this morning.

In the meantime, many of Heavy D’s famous music colleagues, friends and fans continue to express their condolences on Twitter.

MC Hammer tweeted: “We had a lot of great times touring together. He had a heart of gold. He was a part of what’s good about the world.”

Heavy D and La Toya Jackson perform at the 'Michael Forever' concert to remember the late Michael Jackson at The Millenium Stadium on October 8, 2011 in Cardiff, United Kingdom

Heavy – whose real name is Dwight Arrington Myers – last performed at the Michael Jackson tribute concert last month and was joined on stage by La Toya Jackson, who also paid tribute to him on Twitter, writing: “My heart goes out to the family and (loved) ones of Heavy D. I am sooo sorry for your (loss). You will be in my prayers.”

Diddy tweeted: “Heavy D is the person who gave me my 1st chance in the music industry. He got me my internship at Uptown. He believed when no one else did. My heart is broken. Pls pray for my man Heavy D and his family. PLS. love you boy. 4ever! (sic)”

Bowlegged Lou of Full Force, who has known Heavy D and his family for years and has toured with the rapper, called EURweb’s Lee Bailey exclusively to remember his good friend, whom he called “down to earth, talented and just a great guy.” Listen below, and scroll down for more celebrity reaction via Twitter.

Bowlegged Lou remembers Heavy D by CherieNic

Usher: “This is too heavy, I can’t believe it. HEAVY D was just here. Truly gone too soon. My heart and support goes out to his family. R.I.P HEAVY.”

Russell Simmons: “I am deeply saddened by the sudden loss of Heavy D. A long time friend and a beautiful person.”

LL Cool J: “May GOD embrace the soul of Heavy D and Bless his family. I respected you Heavy and I always will.”

Samuel L. Jackson: “Ahhh man! Heavy D?! Dwight wz a dear friend. Fond memories of a truly cool brutha.”

Will.I.Am.: “Heavy D inspired me to be me.”

Nicki Minaj: “We’ll never forget you babe!”

Alyssa Milano: “Heavy D gave me advice when I was pregnant. He said, ‘Cherish every single moment. It goes by way too fast’. Rest in peace, Heavy D.”

Dwayne Johnson aka The Rock quoting the rapper: “Once you’re hip hop, you’re hip hop. It’s in my blood – it’s not going anywhere.”

Carson Daly: “So sad to hear about heavy d. His music was my upbringing. I’m so glad I got to tell him when I saw him at the voice live shows in june.”

John Legend: “I’m so sad about Hev. He really was a wonderful person.”

Khloe Kardashian: “Wow Heavy D passed away…. How? He was so young… My prayers and love go out to all of his loved ones… So sad.. May God bless.”

Common: Heavy D was…no…is one of Hip-Hops finest. Your art and contribution will live 4ever brother! #RIPHheavyD.”

The Game: “Last tweet of the day: Rest In Paradise to a GOOD FRIEND & legendary hip hop icon Dwight Arrington “Heavy D” Myers. Damn life sometimes !!!”

Brandy: “@4everBrandy: I am shocked, overwhelmed, and all of the above at the death of @heavyd ! May you rest in peace!! I love you and I promise to live INSPIRED!”