Kim apologizes to fans for not live tweeting "The Kardashians" debut.

On Thursday's premiere of "The Kardashians" third season, Kim accepted Dolce & Gabbana's offer to collaborate on a Kim-centric collection.

Kim Kardashian apologized to fans on Thursday for not live tweeting The Kardashians' Hulu launch.

I'm here! Sorry, Blink 182 concert. "I didn't forget you guys," tweeted Kardashian.

Kim attended Kourtney Kardashian's husband Travis Barker's Barclays Center concert. Kortney and she watched Barker drum with Blink-182.

Kourtney captioned an Instagram Story selfie with Kim "Look who's together on @kardashianshulu season 3 premiere night." Kim flashes a peace sign as a Kardashians film crew comes behind the sisters.

The Kardashians' earlier shows showed Kim and Kourtney fighting.

On Thursday's "The Kardashians" third season premiere, Kim accepted Dolce & Gabbana's invitation to design a Kim-centric line. The same designers hosted Kourtney's Italian wedding to Travis months earlier. This drama may highlight sister rivalry.

Kourtney accuses Kim of leveraging her wedding for business in season-ending teasers. Kim reportedly avoided using Kourtney's wedding designs in the collection.