everyone knows what happened next.

The Beatles toured the US, made records, had zillions of groupies, and the rest is history.

• at a stretch
• at a time
• at beck and call
• at best
• at convenience
• at cross purposes
• at cross-purposes
• at death's door
• at each other's throats
• at earliest convenience
• at ease
• at elbow
• a tell-tale
• a tempest in a teapot
• at every turn
• at expense
• at fingertips
• at first blush
• at first glance
• have a shot at
• have a shot at someone
• have a shot at something
• have a shufti
• have a snowball's chance in hell
• have a soft spot for