The WM-55

Not only was this WM-55 Walkman from 1986 one of the first Walkmans to come with a hot pink exterior, it also had AM/FM radio. And, brace yourselves -- FM stereo.

Top 10 Billboard songs of 1986:
1. "That's What Friends Are For," Dionne Warwick, Elton John, and Gladys Knight
2. "Say You, Say Me," Lionel Richie
3. "I Miss You," Klymaxx
4. "On My Own," Patti Labelle and Michael McDonald
5. "Broken Wings," Mr. Mister
6. "How Will I Know," Whitney Houston
7. "Party All The Time," Eddie Murphy
8. "Burning Heart," Survivor
9. "Kyrie," Mr. Mister
10. "Addicted to Love," Robert Palmer