Soak up the style of a vocalist you admire. Let his voice inspire you. Glenn Danzig, former lead singer for punk rock group The Misfits, was a huge Elvis Presley fan and it shows in many of his deep baritone performances.
Sing along to songs by vocalists you enjoy. Try to emulate what each one achieves. Reach for an impossible high note with Celine Dion or relax into Bob Dylan's nasal sound.
Listen to different musical genres to develop various vocal music styles. Many vocal music styles are based on or are influenced by other styles--country, for example, is a mix of classical, pop and R&B vocal styles. Listen for those influences in the artists’ voices.
Learn your strengths and weaknesses as a vocalist, whether it be in diction or vibrato. Developing a strong singing foundation is the key to improving your different vocal styles.
Develop styles that work comfortably within your natural range. Not everyone was born to sing opera, but with practice and training you might be able to tackle folk or jazz vocals.
Break each song you are learning down into individual syllables and focus on the way you should sing each syllable based on the style of the song. When singing alternative rock, for example, strive to make your voice raspy and rough-edged.
Make an emotional connection with your audience Allow the feel of the particular song to shape your vocal style. If you are singing "Nothing Compares to U" by Sinead O'Connor, let the sadness of the lyrics affect your stance, facial expression and voice.
Express yourself. Too many pop and classical vocalists spend so much time training to fit within the confines of their chosen vocal styles that they lose their distinctive vocal qualities. Macy Gray, best known for her 1999 single "I Try," disliked her raspy voice, but it helped her gain attention and sent her single to the top of the charts.