News that rappers Kendrick Lamar and J. Cole would be collaborating on a new album first surfaced in 2013. Three years down the line and fans are still waiting for this much-hyped project to come to fruition.

Numerous reasons have been given about the delay. Some have explained the long wait to be due to the rappers' individual projects and packed schedules, while others are pointing their fingers at Drake, saying Lamar working with the Canadian rapper has disrupted the project. There are also those who believe that the Lamar – Cole collaboration won't be dropping anytime soon because of the former's legal problems.

Lamar is currently facing two copyright infringement lawsuits — one for sampling Bill Withers' "Don't You Want to Stay" and the other for using Sameerah Satterthwaite's "Revolutionary Women."

In the Withers' case, which was filed by the Mattie Music Group, the Grammy Award-winning rapper was alleged to have copied the song's musical composition and used it on his hit song "I Do This." As for Satterthwaite's lawsuit, the poet is claiming $200 million for Lamar using the themes of her poem in his "To Pimp a Butterfly" album.

Satterthwaite alleged that she recited "Revolutionary Women" to Lamar in 2014 and the two talked about collaborating on a track. The rapper even used her surname on the song "Alright," calling on her to "turn that s*** up" before rapping "R.I.P., my diligence is to only write your eulogy." Now the poet is demanding compensation from the 28-year-old rapper. This isn't the first time that Lamar has been sued for copyright infringement.

Despite Lamar's legal troubles, J. Cole is reportedly still excited about the collaboration and has said that the album is indeed coming.

Rap fans might have some more waiting to do before Lamar and Cole's album drops, but they can score some of the last two decades' seminal hip-hop albums on iTunes where they are being sold for just $6.