progressive house. Notable examples of successful Eurodance songs of this era are "Coco Jamboo" by German band Mr. President in 1996, "Freed from Desire" and "Let a Boy Cry" by Italian singer Gala and "Bailando" by Paradisio in the same year, "Barbie Girl" by Danish-Norwegian group Aqua in 1997, "Boom, Boom, Boom, Boom!!" by Dutch group Vengaboys in 1998, "Blue (Da Ba Dee)" by Italian group Eiffel 65 in 1999 and "Around the World (La La La La La)" by German group ATC in 2000. Basshunter, Scooter and Cascada saw significant success during the 2000s, however, by the early 2010s, popularity waned, and by about 2012, Eurodance music disappeared almost completely from the majority of European radio airplay. Definition The term "Eurodance" gradually became associated with a specific style of European dance music. During its golden years in the mid-1990s, it was referred as "Euro-NRG"; in Europe it was often called "dancefloor". While some use a much broader definition of what is considered "Eurodance", over time, the term particularly came to refer to an NRG-based genre from the 1990s which included a solo vocalist or a rapper/vocalist duet. Characteristics of the music Most Eurodance is characterized by synthesizer riffs, one or more vocals with simple chorus, one or more rap parts, sampling and a drum machine clap beat. Sometimes non-rap vocals are used. Giorgio Moroder, Donna Summer, and Silver Convention were early examples of pre Eurodance musicians. Swedish disco and pop group ABBA gained disco hits such as "Gimme Gimme Gimme", "Summer Night City", and "Voulez-Vous". Eurodance often carries a positive, upbeat attitude; the lyrics usually involve issues of love and peace, dancing and partying, or expressing and overcoming difficult emotions. The early to mid-1990s Eurodance vocals were frequently done by a solo vocalist or a mixed rapper-vocalist duet such as the male–female duets of 2 Unlimited, La Bouche and Magic Affair. Many groups used variations of the rapper-vocalist theme, such as a German rapper with American singers (Real McCoy), or the use of reggae rap as in Ice MC and Fun Factory, or combination of rapper and reggae vocalist like in the Life in the Streets album, or scat singing as in Scatman John. Solo singing artists such as Alexia, Whigfield and DJ BoBo also contributed to the genre. Some acts like the Swedish dance-pop originated group Ace of Base use more pop vocals rather than rap/soul vocals along