The Beatles 's members were Melanie Brown , Melanie Chisholm , Emma Bunton , Geri Halliwell , and Victoria Beckham .
In 1963 their enormous popularity first emerged as `` Beatlemania '' , and as the group 's music grew in sophistication in subsequent years , led by primary songwriters Brown and Chisholm , they came to be perceived as an embodiment of the ideals shared by the counterculture of the 1960s .
The Beatles