Making the artists' names show up correctly

import UIKit
class PlaylistDetailViewController: UIViewController {

    var playlist: Playlist?
    @IBOutlet weak var playlistCoverImage: UIImageView!

    @IBOutlet weak var playlistTitle: UILabel!

    @IBOutlet weak var playlistDescription: UILabel!


    @IBOutlet weak var playlistArtist0: UILabel!

    @IBOutlet weak var playlistArtist1: UILabel!

    @IBOutlet weak var playlistArtist2: UILabel!


    override func viewDidLoad() {
        super.viewDidLoad()

        if playlist != nil {
            playlistCoverImage.image = playlist!.largeIcon
            playlistCoverImage.backgroundColor = playlist!.backgroundColor
            playlistTitle.text = playlist!.title
            playlistDescription.text = playlist!.description

            playlistArtist0.text = playlist!.artists[0]
            playlistArtist1.text = playlist!.artists[1]
            playlistArtist2.text = playlist!.artists[2]


        }
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }


}

//
//  ViewController.swift
//  Algorhythm
//
//  Created by Sam Davidoff on 1/26/15.
//  Copyright (c) 2015 Wavey Media Group. All rights reserved.
//

import UIKit

class PlaylistMasterViewController: UIViewController {


    @IBOutlet weak var playlistImageView0: UIImageView!


    override func viewDidLoad() {
        super.viewDidLoad()

        let playlist = Playlist(index: 0)
        playlistImageView0.image = playlist.icon
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }



    override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
        if segue.identifier == "showPlaylistDetail" {
            let playlistDetailController = segue.destinationViewController as PlaylistDetailViewController
            playlistDetailController.playlist = Playlist(index: 0)
        }

    }

    @IBAction func showPlaylistDetail(sender: AnyObject) {
        performSegueWithIdentifier("showPlaylistDetailSegue", sender: sender)
    }


}

import Foundation

struct MusicLibrary {

    let library = [
        [
            "title": "Rise and Shine",
            "description": "Get your morning going by singing along to these classic tracks as you hit the shower bright and early!",
            "icon": "coffee.pdf",
            "largeIcon": "coffee_large.pdf",
            "backgroundColor": ["red": 255, "green": 204, "blue": 51, "alpha": 1.0],
            "artists": ["American Authors", "Vacationer", "Matt and Kim", "MGMT", "Echosmith", "Tokyo Police Club", "La Femme"]
        ],
        [
            "title": "Runner's Rampage",
            "description": "Hit the track hard and get in beast mode with everything from dance tracks to classic hip hop. All the right fuel to motivate you to push your limits.",
            "icon": "running.pdf",
            "largeIcon": "running_large.pdf",
            "backgroundColor": ["red": 255, "green": 102, "blue": 51, "alpha": 1.0],
            "artists": ["Avicii", "Calvin Harris", "Pitbull", "Iggy Azalea", "Rita Ora", "Drake", "Lil Wayne"]
        ],
        [
            "title": "Joy Ride",
            "description": "Let this eclectic playlist take you wherever your heart desires. Cruise along in style to these energetic beats.",
            "icon": "helmet.pdf",
            "largeIcon": "helmet_large.pdf",
            "backgroundColor": ["red": 153, "green": 102, "blue": 204, "alpha": 1.0],
            "artists": ["Afrojack", "Kid Cudi", "Daft Punk", "Icona Pop", "Gesaffelstien", "Roksnoix", "deadmau5"]
        ],
        [
            "title": "In The Zone",
            "description": "Keep calm and focus. Shut out the noise around you and grind away with some mind sharpening instrumental tunes.",
            "icon": "laptop.pdf",
            "largeIcon": "laptop_large.pdf",
            "backgroundColor": ["red": 51, "green": 153, "blue": 204, "alpha": 1.0],
            "artists": ["Dr. Dre", "Snoop Dogg", "Com Truise", "D12", "Flying Lotus", "Kanye West", "Rundfunk"]
        ],
        [
            "title": "Button Masher",
            "description": "Turn up the speakers and get out of my way! The ultimate gaming playlist to get you hyped up and ready for the crazy fun that’s about to happen.",
            "icon": "joystick.pdf",
            "largeIcon": "joystick_large.pdf",
            "backgroundColor": ["red": 51, "green": 204, "blue": 102, "alpha": 1.0],
            "artists": ["Skrillex", "The Game", "2 Chainz", "Jay Z", "T.I.", "Rihanna", "Eminem"]
        ],
        [
            "title": "Futbal Remix",
            "description": "There’s nothing like the world’s game. Kick around the field with this eclectic playlist from around the world. Futbal for life.",
            "icon": "ball.pdf",
            "largeIcon": "ball_large.pdf",
            "backgroundColor": ["red": 255, "green": 102, "blue": 153, "alpha": 1.0],
            "artists": ["Shakira", "Santana", "Wyclef Jean", "Aloe Blacc", "Pitbull", "Enrique Iglesias", "Ricky Martin"]
        ]
    ]

    }